125767789 has 4 divisors (see below), whose sum is σ = 143734624. Its totient is φ = 107800956.

The previous prime is 125767711. The next prime is 125767799. The reversal of 125767789 is 987767521.

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 125767789 - 2⁷ = 125767661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125767799) 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, 8983407 + ... + 8983420.

It is an arithmetic number, because the mean of its divisors is an integer number (35933656).

Almost surely, 2^125767789 is an apocalyptic number.

It is an amenable number.

125767789 is a deficient number, since it is larger than the sum of its proper divisors (17966835).

125767789 is an equidigital number, since it uses as much as digits as its factorization.

125767789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17966834.

The product of its digits is 1481760, while the sum is 52.

The square root of 125767789 is about 11214.6238902604. The cubic root of 125767789 is about 501.0216297901.

The spelling of 125767789 in words is "one hundred twenty-five million, seven hundred sixty-seven thousand, seven hundred eighty-nine".