157981935 has 16 divisors (see below), whose sum is σ = 267640416. Its totient is φ = 79300608.

The previous prime is 157981927. The next prime is 157981949. The reversal of 157981935 is 539189751.

It is not a de Polignac number, because 157981935 - 2³ = 157981927 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 309514 + ... + 310023.

It is an arithmetic number, because the mean of its divisors is an integer number (16727526).

Almost surely, 2^157981935 is an apocalyptic number.

157981935 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

157981935 is a deficient number, since it is larger than the sum of its proper divisors (109658481).

157981935 is a wasteful number, since it uses less digits than its factorization.

157981935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619562.

The product of its digits is 340200, while the sum is 48.

The square root of 157981935 is about 12569.0864823184. The cubic root of 157981935 is about 540.5914130849.

The spelling of 157981935 in words is "one hundred fifty-seven million, nine hundred eighty-one thousand, nine hundred thirty-five".