125473221 has 12 divisors (see below), whose sum is σ = 185095872. Its totient is φ = 81868776.

The previous prime is 125473217. The next prime is 125473223. The reversal of 125473221 is 122374521.

It is not a de Polignac number, because 125473221 - 2² = 125473217 is a prime.

It is a super-2 number, since 2×125473221² = 31487058376229682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125473223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147891 + ... + 148736.

It is an arithmetic number, because the mean of its divisors is an integer number (15424656).

Almost surely, 2^125473221 is an apocalyptic number.

It is an amenable number.

125473221 is a deficient number, since it is larger than the sum of its proper divisors (59622651).

125473221 is a wasteful number, since it uses less digits than its factorization.

125473221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296680 (or 296677 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 125473221 is about 11201.4829821770. The cubic root of 125473221 is about 500.6301667793.

The spelling of 125473221 in words is "one hundred twenty-five million, four hundred seventy-three thousand, two hundred twenty-one".