157454866 has 4 divisors (see below), whose sum is σ = 236182302. Its totient is φ = 78727432.

The previous prime is 157454837. The next prime is 157454879. The reversal of 157454866 is 668454751.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 157377025 + 77841 = 12545^2 + 279^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39363715 + ... + 39363718.

Almost surely, 2^157454866 is an apocalyptic number.

157454866 is a deficient number, since it is larger than the sum of its proper divisors (78727436).

157454866 is an equidigital number, since it uses as much as digits as its factorization.

157454866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78727435.

The product of its digits is 806400, while the sum is 46.

The square root of 157454866 is about 12548.1020875669. The cubic root of 157454866 is about 539.9895585544.

The spelling of 157454866 in words is "one hundred fifty-seven million, four hundred fifty-four thousand, eight hundred sixty-six".