157121835 has 24 divisors (see below), whose sum is σ = 272224944. Its totient is φ = 77351040.

The previous prime is 157121819. The next prime is 157121851. The reversal of 157121835 is 538121751.

It is an interprime number because it is at equal distance from previous prime (157121819) and next prime (157121851).

It is not a de Polignac number, because 157121835 - 2⁴ = 157121819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157121796 and 157121805.

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 23 ways as a sum of consecutive naturals, for example, 28456 + ... + 33525.

It is an arithmetic number, because the mean of its divisors is an integer number (11342706).

Almost surely, 2^157121835 is an apocalyptic number.

157121835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

157121835 is a deficient number, since it is larger than the sum of its proper divisors (115103109).

157121835 is a wasteful number, since it uses less digits than its factorization.

157121835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62015 (or 62002 counting only the distinct ones).

The product of its digits is 8400, while the sum is 33.

The square root of 157121835 is about 12534.8248890840. The cubic root of 157121835 is about 539.6085812322.

The spelling of 157121835 in words is "one hundred fifty-seven million, one hundred twenty-one thousand, eight hundred thirty-five".