125131413731 has 4 divisors (see below), whose sum is σ = 125136466200. Its totient is φ = 125126361264.

The previous prime is 125131413713. The next prime is 125131413761. The reversal of 125131413731 is 137314131521.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-125131413731 is a prime.

It is a super-2 number, since 2×125131413731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125131413761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2488901 + ... + 2538678.

It is an arithmetic number, because the mean of its divisors is an integer number (31284116550).

Almost surely, 2^125131413731 is an apocalyptic number.

125131413731 is a deficient number, since it is larger than the sum of its proper divisors (5052469).

125131413731 is an equidigital number, since it uses as much as digits as its factorization.

125131413731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052468.

The product of its digits is 7560, while the sum is 32.

The spelling of 125131413731 in words is "one hundred twenty-five billion, one hundred thirty-one million, four hundred thirteen thousand, seven hundred thirty-one".