125996713039 has 4 divisors (see below), whose sum is σ = 125997711624. Its totient is φ = 125995714456.

The previous prime is 125996713027. The next prime is 125996713091. The reversal of 125996713039 is 930317699521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125996713039 is a prime.

It is a super-2 number, since 2×125996713039² (a number of 23 digits) 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 (125996713009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277057 + ... + 573370.

It is an arithmetic number, because the mean of its divisors is an integer number (31499427906).

Almost surely, 2^125996713039 is an apocalyptic number.

125996713039 is a deficient number, since it is larger than the sum of its proper divisors (998585).

125996713039 is an equidigital number, since it uses as much as digits as its factorization.

125996713039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998584.

The product of its (nonzero) digits is 2755620, while the sum is 55.

It can be divided in two parts, 12599671 and 3039, that added together give a triangular number (12602710 = T₅₀₂₀).

The spelling of 125996713039 in words is "one hundred twenty-five billion, nine hundred ninety-six million, seven hundred thirteen thousand, thirty-nine".