231153105 has 32 divisors (see below), whose sum is σ = 386908416. Its totient is φ = 117621504.

The previous prime is 231153101. The next prime is 231153119. The reversal of 231153105 is 501351132.

It is not a de Polignac number, because 231153105 - 2² = 231153101 is a prime.

It is a super-2 number, since 2×231153105² = 106863515902282050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231153101) 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, 210939 + ... + 212031.

It is an arithmetic number, because the mean of its divisors is an integer number (12090888).

Almost surely, 2^231153105 is an apocalyptic number.

It is an amenable number.

231153105 is a deficient number, since it is larger than the sum of its proper divisors (155755311).

231153105 is a wasteful number, since it uses less digits than its factorization.

231153105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 231153105 is about 15203.7201039746. The cubic root of 231153105 is about 613.7147725421.

The spelling of 231153105 in words is "two hundred thirty-one million, one hundred fifty-three thousand, one hundred five".