125440331 has 16 divisors (see below), whose sum is σ = 136898784. Its totient is φ = 114476544.

The previous prime is 125440309. The next prime is 125440369. The reversal of 125440331 is 133044521.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125440331 is a prime.

It is a super-2 number, since 2×125440331² = 31470553282779122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125440297 and 125440306.

It is not an unprimeable number, because it can be changed into a prime (125410331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114221 + ... + 115313.

It is an arithmetic number, because the mean of its divisors is an integer number (8556174).

Almost surely, 2^125440331 is an apocalyptic number.

125440331 is a deficient number, since it is larger than the sum of its proper divisors (11458453).

125440331 is a wasteful number, since it uses less digits than its factorization.

125440331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 125440331 is about 11200.0147767760. The cubic root of 125440331 is about 500.5864199544.

Adding to 125440331 its reverse (133044521), we get a palindrome (258484852).

The spelling of 125440331 in words is "one hundred twenty-five million, four hundred forty thousand, three hundred thirty-one".