231155496 has 216 divisors, whose sum is σ = 749884590. Its totient is φ = 64247040.

The previous prime is 231155489. The next prime is 231155503. The reversal of 231155496 is 694551132.

231155496 is a `hidden beast` number, since 2 + 3 + 11 + 554 + 96 = 666.

231155496 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231155489) and next prime (231155503).

It can be written as a sum of positive squares in 3 ways, for example, as 91584900 + 139570596 = 9570^2 + 11814^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 231155496.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1472250 + ... + 1472406.

Almost surely, 2^231155496 is an apocalyptic number.

231155496 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231155496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374942295).

231155496 is an abundant number, since it is smaller than the sum of its proper divisors (518729094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231155496 is a wasteful number, since it uses less digits than its factorization.

231155496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 186 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 231155496 is about 15203.7987358423. The cubic root of 231155496 is about 613.7168885811.

The spelling of 231155496 in words is "two hundred thirty-one million, one hundred fifty-five thousand, four hundred ninety-six".