231155154 has 64 divisors (see below), whose sum is σ = 554273280. Its totient is φ = 71136000.

The previous prime is 231155153. The next prime is 231155167. The reversal of 231155154 is 451551132.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (231155153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46279 + ... + 51029.

It is an arithmetic number, because the mean of its divisors is an integer number (8660520).

Almost surely, 2^231155154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231155154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277136640).

231155154 is an abundant number, since it is smaller than the sum of its proper divisors (323118126).

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

231155154 is a wasteful number, since it uses less digits than its factorization.

231155154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832 (or 4826 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 231155154 is about 15203.7874886490. The cubic root of 231155154 is about 613.7165859114.

The spelling of 231155154 in words is "two hundred thirty-one million, one hundred fifty-five thousand, one hundred fifty-four".