231045025 has 12 divisors (see below), whose sum is σ = 289950192. Its totient is φ = 182607440.

The previous prime is 231044987. The next prime is 231045029. The reversal of 231045025 is 520540132.

It is not a de Polignac number, because 231045025 - 2²⁵ = 197490593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231044987 and 231045005.

It is not an unprimeable number, because it can be changed into a prime (231045029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53599 + ... + 57748.

It is an arithmetic number, because the mean of its divisors is an integer number (24162516).

Almost surely, 2^231045025 is an apocalyptic number.

231045025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231045025 is a deficient number, since it is larger than the sum of its proper divisors (58905167).

231045025 is a wasteful number, since it uses less digits than its factorization.

231045025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111440 (or 111435 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 231045025 is about 15200.1652951539. The cubic root of 231045025 is about 613.6191063193.

Adding to 231045025 its reverse (520540132), we get a palindrome (751585157).

The spelling of 231045025 in words is "two hundred thirty-one million, forty-five thousand, twenty-five".