231151025 has 48 divisors (see below), whose sum is σ = 348311040. Its totient is φ = 148780800.

The previous prime is 231151013. The next prime is 231151027. The reversal of 231151025 is 520151132.

It is a happy number.

It is not a de Polignac number, because 231151025 - 2¹⁶ = 231085489 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 231150988 and 231151006.

It is not an unprimeable number, because it can be changed into a prime (231151027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 187160 + ... + 188390.

It is an arithmetic number, because the mean of its divisors is an integer number (7256480).

Almost surely, 2^231151025 is an apocalyptic number.

231151025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231151025 is a deficient number, since it is larger than the sum of its proper divisors (117160015).

231151025 is a wasteful number, since it uses less digits than its factorization.

231151025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 231151025 is about 15203.6516995096. The cubic root of 231151025 is about 613.7129317267.

The spelling of 231151025 in words is "two hundred thirty-one million, one hundred fifty-one thousand, twenty-five".