125012031 has 8 divisors (see below), whose sum is σ = 166749744. Its totient is φ = 83307840.

The previous prime is 125012023. The next prime is 125012047. The reversal of 125012031 is 130210521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125012031 - 2³ = 125012023 is a prime.

It is a super-2 number, since 2×125012031² = 31256015789489922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125012031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125012021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2251 + ... + 15971.

It is an arithmetic number, because the mean of its divisors is an integer number (20843718).

Almost surely, 2^125012031 is an apocalyptic number.

125012031 is a deficient number, since it is larger than the sum of its proper divisors (41737713).

125012031 is a wasteful number, since it uses less digits than its factorization.

125012031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16761.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 125012031 is about 11180.8779172299. The cubic root of 125012031 is about 500.0160408187.

Adding to 125012031 its reverse (130210521), we get a palindrome (255222552).

The spelling of 125012031 in words is "one hundred twenty-five million, twelve thousand, thirty-one".