125393031 has 24 divisors (see below), whose sum is σ = 186002960. Its totient is φ = 81357696.

The previous prime is 125393017. The next prime is 125393077. The reversal of 125393031 is 130393521.

It is a happy number.

It is not a de Polignac number, because 125393031 - 2¹³ = 125384839 is a prime.

It is a super-2 number, since 2×125393031² = 31446824446733922, 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 = 125392986 and 125393004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125393011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176505 + ... + 177213.

Almost surely, 2^125393031 is an apocalyptic number.

125393031 is a deficient number, since it is larger than the sum of its proper divisors (60609929).

125393031 is a wasteful number, since it uses less digits than its factorization.

125393031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215 (or 1212 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 125393031 is about 11197.9029733250. The cubic root of 125393031 is about 500.5234930521.

The spelling of 125393031 in words is "one hundred twenty-five million, three hundred ninety-three thousand, thirty-one".