157440899 has 32 divisors (see below), whose sum is σ = 202051584. Its totient is φ = 119134080.

The previous prime is 157440889. The next prime is 157440901. The reversal of 157440899 is 998044751.

It is a cyclic number.

It is not a de Polignac number, because 157440899 - 2⁸ = 157440643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157440839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 705902 + ... + 706124.

It is an arithmetic number, because the mean of its divisors is an integer number (6314112).

Almost surely, 2^157440899 is an apocalyptic number.

157440899 is a deficient number, since it is larger than the sum of its proper divisors (44610685).

157440899 is a wasteful number, since it uses less digits than its factorization.

157440899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 157440899 is about 12547.5455368769. The cubic root of 157440899 is about 539.9735915297.

The spelling of 157440899 in words is "one hundred fifty-seven million, four hundred forty thousand, eight hundred ninety-nine".