126157473 has 32 divisors (see below), whose sum is σ = 211881600. Its totient is φ = 73545408.

The previous prime is 126157439. The next prime is 126157477. The reversal of 126157473 is 374751621.

It is a happy number.

126157473 is a `hidden beast` number, since 12 + 6 + 1 + 574 + 73 = 666.

It is not a de Polignac number, because 126157473 - 2⁸ = 126157217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126157477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2790 + ... + 16127.

It is an arithmetic number, because the mean of its divisors is an integer number (6621300).

Almost surely, 2^126157473 is an apocalyptic number.

126157473 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

126157473 is a deficient number, since it is larger than the sum of its proper divisors (85724127).

126157473 is a wasteful number, since it uses less digits than its factorization.

126157473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18958 (or 18952 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 126157473 is about 11231.9843749891. The cubic root of 126157473 is about 501.5385581549.

The spelling of 126157473 in words is "one hundred twenty-six million, one hundred fifty-seven thousand, four hundred seventy-three".