125439683 has 4 divisors (see below), whose sum is σ = 126657648. Its totient is φ = 124221720.

The previous prime is 125439661. The next prime is 125439689. The reversal of 125439683 is 386934521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 386934521 = 14341 ⋅26981.

It is a cyclic number.

It is not a de Polignac number, because 125439683 - 2⁸ = 125439427 is a prime.

It is a super-2 number, since 2×125439683² = 31470228142280978, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125439683.

It is not an unprimeable number, because it can be changed into a prime (125439689) 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, 608828 + ... + 609033.

It is an arithmetic number, because the mean of its divisors is an integer number (31664412).

Almost surely, 2^125439683 is an apocalyptic number.

125439683 is a deficient number, since it is larger than the sum of its proper divisors (1217965).

125439683 is a wasteful number, since it uses less digits than its factorization.

125439683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217964.

The product of its digits is 155520, while the sum is 41.

The square root of 125439683 is about 11199.9858482053. The cubic root of 125439683 is about 500.5855579760.

The spelling of 125439683 in words is "one hundred twenty-five million, four hundred thirty-nine thousand, six hundred eighty-three".