125628031 has 6 divisors (see below), whose sum is σ = 126103632. Its totient is φ = 125154000.

The previous prime is 125628017. The next prime is 125628037. The reversal of 125628031 is 130826521.

It is not a de Polignac number, because 125628031 - 2¹³ = 125619839 is a prime.

It is a super-2 number, since 2×125628031² = 31564804345873922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125628037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166906 + ... + 167656.

It is an arithmetic number, because the mean of its divisors is an integer number (21017272).

Almost surely, 2^125628031 is an apocalyptic number.

125628031 is a deficient number, since it is larger than the sum of its proper divisors (475601).

125628031 is an frugal number, since it uses more digits than its factorization.

125628031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569 (or 1160 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 125628031 is about 11208.3910977446. The cubic root of 125628031 is about 500.8359761754.

The spelling of 125628031 in words is "one hundred twenty-five million, six hundred twenty-eight thousand, thirty-one".