125779623 has 8 divisors (see below), whose sum is σ = 167768448. Its totient is φ = 83821944.

The previous prime is 125779603. The next prime is 125779637. The reversal of 125779623 is 326977521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125779623 - 2¹⁰ = 125778599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125779603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4336 + ... + 16442.

It is an arithmetic number, because the mean of its divisors is an integer number (20971056).

Almost surely, 2^125779623 is an apocalyptic number.

125779623 is a deficient number, since it is larger than the sum of its proper divisors (41988825).

125779623 is a wasteful number, since it uses less digits than its factorization.

125779623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15573.

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

The square root of 125779623 is about 11215.1514925123. The cubic root of 125779623 is about 501.0373436812.

The spelling of 125779623 in words is "one hundred twenty-five million, seven hundred seventy-nine thousand, six hundred twenty-three".