157354394 has 8 divisors (see below), whose sum is σ = 237730080. Its totient is φ = 78111036.

The previous prime is 157354387. The next prime is 157354423. The reversal of 157354394 is 493453751.

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

It is a super-2 number, since 2×157354394² = 49520810622214472, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282734 + ... + 283289.

It is an arithmetic number, because the mean of its divisors is an integer number (29716260).

Almost surely, 2^157354394 is an apocalyptic number.

157354394 is a deficient number, since it is larger than the sum of its proper divisors (80375686).

157354394 is a wasteful number, since it uses less digits than its factorization.

157354394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566164.

The product of its digits is 226800, while the sum is 41.

The square root of 157354394 is about 12544.0979747449. The cubic root of 157354394 is about 539.8746782796.

The spelling of 157354394 in words is "one hundred fifty-seven million, three hundred fifty-four thousand, three hundred ninety-four".