125664454 has 8 divisors (see below), whose sum is σ = 191691720. Its totient is φ = 61767216.

The previous prime is 125664449. The next prime is 125664457. The reversal of 125664454 is 454466521.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125664457) 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, 532359 + ... + 532594.

It is an arithmetic number, because the mean of its divisors is an integer number (23961465).

Almost surely, 2^125664454 is an apocalyptic number.

125664454 is a deficient number, since it is larger than the sum of its proper divisors (66027266).

125664454 is a wasteful number, since it uses less digits than its factorization.

125664454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065014.

The product of its digits is 115200, while the sum is 37.

The square root of 125664454 is about 11210.0157894626. The cubic root of 125664454 is about 500.8843735114.

It can be divided in two parts, 12566 and 4454, that added together give a triangular number (17020 = T₁₈₄).

The spelling of 125664454 in words is "one hundred twenty-five million, six hundred sixty-four thousand, four hundred fifty-four".