157733985 has 8 divisors (see below), whose sum is σ = 252374400. Its totient is φ = 84124784.

The previous prime is 157733971. The next prime is 157733993. The reversal of 157733985 is 589337751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157733985 - 2⁴ = 157733969 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5257785 + ... + 5257814.

It is an arithmetic number, because the mean of its divisors is an integer number (31546800).

Almost surely, 2^157733985 is an apocalyptic number.

157733985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157733985 is a deficient number, since it is larger than the sum of its proper divisors (94640415).

157733985 is a wasteful number, since it uses less digits than its factorization.

157733985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10515607.

The product of its digits is 793800, while the sum is 48.

The square root of 157733985 is about 12559.2191238150. The cubic root of 157733985 is about 540.3084486088.

The spelling of 157733985 in words is "one hundred fifty-seven million, seven hundred thirty-three thousand, nine hundred eighty-five".