157997314 has 8 divisors (see below), whose sum is σ = 239996160. Its totient is φ = 77998596.

The previous prime is 157997311. The next prime is 157997321. The reversal of 157997314 is 413799751.

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

It is not an unprimeable number, because it can be changed into a prime (157997311) 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, 499834 + ... + 500149.

It is an arithmetic number, because the mean of its divisors is an integer number (29999520).

Almost surely, 2^157997314 is an apocalyptic number.

157997314 is a deficient number, since it is larger than the sum of its proper divisors (81998846).

157997314 is an equidigital number, since it uses as much as digits as its factorization.

157997314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000064.

The product of its digits is 238140, while the sum is 46.

The square root of 157997314 is about 12569.6982461792. The cubic root of 157997314 is about 540.6089540896.

The spelling of 157997314 in words is "one hundred fifty-seven million, nine hundred ninety-seven thousand, three hundred fourteen".