157137983 has 2 divisors, whose sum is σ = 157137984. Its totient is φ = 157137982.

The previous prime is 157137949. The next prime is 157138027. The reversal of 157137983 is 389731751.

It is an a-pointer prime, because the next prime (157138027) can be obtained adding 157137983 to its sum of digits (44).

It is a weak prime.

It is an emirp because it is prime and its reverse (389731751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157137983 - 2¹⁸ = 156875839 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157157983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78568991 + 78568992.

It is an arithmetic number, because the mean of its divisors is an integer number (78568992).

Almost surely, 2^157137983 is an apocalyptic number.

157137983 is a deficient number, since it is larger than the sum of its proper divisors (1).

157137983 is an equidigital number, since it uses as much as digits as its factorization.

157137983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 44.

The square root of 157137983 is about 12535.4689980072. The cubic root of 157137983 is about 539.6270664646.

The spelling of 157137983 in words is "one hundred fifty-seven million, one hundred thirty-seven thousand, nine hundred eighty-three".