157042071 has 10 divisors (see below), whose sum is σ = 234593832. Its totient is φ = 104694660.

The previous prime is 157042069. The next prime is 157042099. The reversal of 157042071 is 170240751.

157042071 is a `hidden beast` number, since 1 + 570 + 4 + 20 + 71 = 666.

157042071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157042071 - 2¹ = 157042069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157042051) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 969315 + ... + 969476.

Almost surely, 2^157042071 is an apocalyptic number.

157042071 is a deficient number, since it is larger than the sum of its proper divisors (77551761).

157042071 is an equidigital number, since it uses as much as digits as its factorization.

157042071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938803 (or 1938794 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 157042071 is about 12531.6427893553. The cubic root of 157042071 is about 539.5172537509.

The spelling of 157042071 in words is "one hundred fifty-seven million, forty-two thousand, seventy-one".