125372769 has 4 divisors (see below), whose sum is σ = 167163696. Its totient is φ = 83581844.

The previous prime is 125372717. The next prime is 125372789. The reversal of 125372769 is 967273521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125372769 - 2¹² = 125368673 is a prime.

It is a super-2 number, since 2×125372769² = 31436662413454722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125372769.

It is not an unprimeable number, because it can be changed into a prime (125372789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20895459 + ... + 20895464.

It is an arithmetic number, because the mean of its divisors is an integer number (41790924).

Almost surely, 2^125372769 is an apocalyptic number.

It is an amenable number.

125372769 is a deficient number, since it is larger than the sum of its proper divisors (41790927).

125372769 is an equidigital number, since it uses as much as digits as its factorization.

125372769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41790926.

The product of its digits is 158760, while the sum is 42.

The square root of 125372769 is about 11196.9982138071. The cubic root of 125372769 is about 500.4965320819.

The spelling of 125372769 in words is "one hundred twenty-five million, three hundred seventy-two thousand, seven hundred sixty-nine".