157605985 has 8 divisors (see below), whose sum is σ = 189213696. Its totient is φ = 126027120.

The previous prime is 157605983. The next prime is 157605989. The reversal of 157605985 is 589506751.

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

It is not a de Polignac number, because 157605985 - 2¹ = 157605983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157605983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7570 + ... + 19300.

It is an arithmetic number, because the mean of its divisors is an integer number (23651712).

Almost surely, 2^157605985 is an apocalyptic number.

It is an amenable number.

157605985 is a deficient number, since it is larger than the sum of its proper divisors (31607711).

157605985 is a wasteful number, since it uses less digits than its factorization.

157605985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14423.

The product of its (nonzero) digits is 378000, while the sum is 46.

The square root of 157605985 is about 12554.1222313629. The cubic root of 157605985 is about 540.1622569107.

The spelling of 157605985 in words is "one hundred fifty-seven million, six hundred five thousand, nine hundred eighty-five".