157971583 has 16 divisors (see below), whose sum is σ = 197303040. Its totient is φ = 122875200.

The previous prime is 157971577. The next prime is 157971587. The reversal of 157971583 is 385179751.

It is not a de Polignac number, because 157971583 - 2¹⁷ = 157840511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157971587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51723 + ... + 54691.

It is an arithmetic number, because the mean of its divisors is an integer number (12331440).

Almost surely, 2^157971583 is an apocalyptic number.

157971583 is a deficient number, since it is larger than the sum of its proper divisors (39331457).

157971583 is a wasteful number, since it uses less digits than its factorization.

157971583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678.

The product of its digits is 264600, while the sum is 46.

The square root of 157971583 is about 12568.6746715793. The cubic root of 157971583 is about 540.5796051429.

The spelling of 157971583 in words is "one hundred fifty-seven million, nine hundred seventy-one thousand, five hundred eighty-three".