157934393 has 8 divisors (see below), whose sum is σ = 158999808. Its totient is φ = 156873024.

The previous prime is 157934383. The next prime is 157934411. The reversal of 157934393 is 393439751.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 157934393 - 2¹⁴ = 157918009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157934323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121121 + ... + 122417.

It is an arithmetic number, because the mean of its divisors is an integer number (19874976).

Almost surely, 2^157934393 is an apocalyptic number.

It is an amenable number.

157934393 is a deficient number, since it is larger than the sum of its proper divisors (1065415).

157934393 is a wasteful number, since it uses less digits than its factorization.

157934393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023.

The product of its digits is 306180, while the sum is 44.

The square root of 157934393 is about 12567.1951126733. The cubic root of 157934393 is about 540.5371803536.

The spelling of 157934393 in words is "one hundred fifty-seven million, nine hundred thirty-four thousand, three hundred ninety-three".