157457342 has 8 divisors (see below), whose sum is σ = 269926896. Its totient is φ = 67481712.

The previous prime is 157457323. The next prime is 157457347. The reversal of 157457342 is 243754751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 157457296 and 157457305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157457347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5623463 + ... + 5623490.

It is an arithmetic number, because the mean of its divisors is an integer number (33740862).

Almost surely, 2^157457342 is an apocalyptic number.

157457342 is a deficient number, since it is larger than the sum of its proper divisors (112469554).

157457342 is a wasteful number, since it uses less digits than its factorization.

157457342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11246962.

The product of its digits is 117600, while the sum is 38.

The square root of 157457342 is about 12548.2007475175. The cubic root of 157457342 is about 539.9923890102.

The spelling of 157457342 in words is "one hundred fifty-seven million, four hundred fifty-seven thousand, three hundred forty-two".