125645331 has 16 divisors (see below), whose sum is σ = 191629568. Its totient is φ = 71733600.

The previous prime is 125645323. The next prime is 125645341. The reversal of 125645331 is 133546521.

It is not a de Polignac number, because 125645331 - 2³ = 125645323 is a prime.

It is a super-2 number, since 2×125645331² = 31573498404199122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125645321) 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, 32196 + ... + 35886.

It is an arithmetic number, because the mean of its divisors is an integer number (11976848).

Almost surely, 2^125645331 is an apocalyptic number.

125645331 is a deficient number, since it is larger than the sum of its proper divisors (65984237).

125645331 is a wasteful number, since it uses less digits than its factorization.

125645331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5322.

The product of its digits is 10800, while the sum is 30.

The square root of 125645331 is about 11209.1628144121. The cubic root of 125645331 is about 500.8589648471.

The spelling of 125645331 in words is "one hundred twenty-five million, six hundred forty-five thousand, three hundred thirty-one".