125426131039 has 4 divisors (see below), whose sum is σ = 136828506600. Its totient is φ = 114023755480.

The previous prime is 125426131003. The next prime is 125426131043. The reversal of 125426131039 is 930131624521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930131624521 = 11 ⋅84557420411.

It is a cyclic number.

It is not a de Polignac number, because 125426131039 - 2¹⁹ = 125425606751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125426130989 and 125426131007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125426131079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5701187764 + ... + 5701187785.

It is an arithmetic number, because the mean of its divisors is an integer number (34207126650).

Almost surely, 2^125426131039 is an apocalyptic number.

125426131039 is a deficient number, since it is larger than the sum of its proper divisors (11402375561).

125426131039 is a wasteful number, since it uses less digits than its factorization.

125426131039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11402375560.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 125426131039 in words is "one hundred twenty-five billion, four hundred twenty-six million, one hundred thirty-one thousand, thirty-nine".