125000253131 has 16 divisors (see below), whose sum is σ = 134956995264. Its totient is φ = 115092641664.

The previous prime is 125000253127. The next prime is 125000253143. The reversal of 125000253131 is 131352000521.

It is a happy number.

It is not a de Polignac number, because 125000253131 - 2² = 125000253127 is a prime.

It is a super-2 number, since 2×125000253131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125000253097 and 125000253106.

It is not an unprimeable number, because it can be changed into a prime (125000253031) 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, 9186425 + ... + 9200021.

It is an arithmetic number, because the mean of its divisors is an integer number (8434812204).

Almost surely, 2^125000253131 is an apocalyptic number.

125000253131 is a deficient number, since it is larger than the sum of its proper divisors (9956742133).

125000253131 is a wasteful number, since it uses less digits than its factorization.

125000253131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15350.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 125000253131 its reverse (131352000521), we get a palindrome (256352253652).

The spelling of 125000253131 in words is "one hundred twenty-five billion, two hundred fifty-three thousand, one hundred thirty-one".