157261473 has 8 divisors (see below), whose sum is σ = 232980000. Its totient is φ = 104840964.

The previous prime is 157261471. The next prime is 157261501. The reversal of 157261473 is 374162751.

It is a happy number.

157261473 is a `hidden beast` number, since 1 + 572 + 6 + 14 + 73 = 666.

It is not a de Polignac number, because 157261473 - 2¹ = 157261471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157261471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2912223 + ... + 2912276.

It is an arithmetic number, because the mean of its divisors is an integer number (29122500).

Almost surely, 2^157261473 is an apocalyptic number.

It is an amenable number.

157261473 is a deficient number, since it is larger than the sum of its proper divisors (75718527).

157261473 is an equidigital number, since it uses as much as digits as its factorization.

157261473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5824508 (or 5824502 counting only the distinct ones).

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

The square root of 157261473 is about 12540.3936541083. The cubic root of 157261473 is about 539.7683883278.

The spelling of 157261473 in words is "one hundred fifty-seven million, two hundred sixty-one thousand, four hundred seventy-three".