157042542 has 32 divisors (see below), whose sum is σ = 320371200. Its totient is φ = 51305408.

The previous prime is 157042537. The next prime is 157042553. The reversal of 157042542 is 245240751.

157042542 = T₂₆₈ + T₂₆₉ + ... + T₉₈₆.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218059 + ... + 218777.

It is an arithmetic number, because the mean of its divisors is an integer number (10011600).

Almost surely, 2^157042542 is an apocalyptic number.

157042542 is an abundant number, since it is smaller than the sum of its proper divisors (163328658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157042542 is a wasteful number, since it uses less digits than its factorization.

157042542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400.

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 157042542 is about 12531.6615817696. The cubic root of 157042542 is about 539.5177931231.

The spelling of 157042542 in words is "one hundred fifty-seven million, forty-two thousand, five hundred forty-two".