125166447 has 12 divisors (see below), whose sum is σ = 206624080. Its totient is φ = 71523648.

The previous prime is 125166413. The next prime is 125166463. The reversal of 125166447 is 744661521.

125166447 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 6 + 644 + 7 = 666.

It is not a de Polignac number, because 125166447 - 2⁸ = 125166191 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 (125166487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 993322 + ... + 993447.

Almost surely, 2^125166447 is an apocalyptic number.

125166447 is a deficient number, since it is larger than the sum of its proper divisors (81457633).

125166447 is a wasteful number, since it uses less digits than its factorization.

125166447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986782 (or 1986779 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 125166447 is about 11187.7811473053. The cubic root of 125166447 is about 500.2218309009.

The spelling of 125166447 in words is "one hundred twenty-five million, one hundred sixty-six thousand, four hundred forty-seven".