125454666 has 16 divisors (see below), whose sum is σ = 253933344. Its totient is φ = 41314224.

The previous prime is 125454649. The next prime is 125454677. The reversal of 125454666 is 666454521.

It is a super-4 number, since 4×125454666⁴ (a number of 33 digits) contains 4444 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125461 + ... + 126456.

It is an arithmetic number, because the mean of its divisors is an integer number (15870834).

Almost surely, 2^125454666 is an apocalyptic number.

125454666 is an abundant number, since it is smaller than the sum of its proper divisors (128478678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125454666 is a wasteful number, since it uses less digits than its factorization.

125454666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252005.

The product of its digits is 172800, while the sum is 39.

The square root of 125454666 is about 11200.6547130067. The cubic root of 125454666 is about 500.6054878064.

The spelling of 125454666 in words is "one hundred twenty-five million, four hundred fifty-four thousand, six hundred sixty-six".