231269387 has 8 divisors (see below), whose sum is σ = 244146000. Its totient is φ = 218463264.

The previous prime is 231269383. The next prime is 231269431. The reversal of 231269387 is 783962132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231269387 - 2² = 231269383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231269383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10808 + ... + 24069.

It is an arithmetic number, because the mean of its divisors is an integer number (30518250).

Almost surely, 2^231269387 is an apocalyptic number.

231269387 is a deficient number, since it is larger than the sum of its proper divisors (12876613).

231269387 is a wasteful number, since it uses less digits than its factorization.

231269387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35245.

The product of its digits is 108864, while the sum is 41.

The square root of 231269387 is about 15207.5437530194. The cubic root of 231269387 is about 613.8176654103.

The spelling of 231269387 in words is "two hundred thirty-one million, two hundred sixty-nine thousand, three hundred eighty-seven".