157144274 has 48 divisors (see below), whose sum is σ = 284407200. Its totient is φ = 64886976.

The previous prime is 157144237. The next prime is 157144313. The reversal of 157144274 is 472441751.

Its product of digits (31360) is a multiple of the sum of its prime divisors (560).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 374837 + ... + 375255.

It is an arithmetic number, because the mean of its divisors is an integer number (5925150).

Almost surely, 2^157144274 is an apocalyptic number.

157144274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

157144274 is a deficient number, since it is larger than the sum of its proper divisors (127262926).

157144274 is a wasteful number, since it uses less digits than its factorization.

157144274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 560 counting only the distinct ones).

The product of its digits is 31360, while the sum is 35.

The square root of 157144274 is about 12535.7199234827. The cubic root of 157144274 is about 539.6342676698.

The spelling of 157144274 in words is "one hundred fifty-seven million, one hundred forty-four thousand, two hundred seventy-four".