157994 has 8 divisors (see below), whose sum is σ = 238788. Its totient is φ = 78400.

The previous prime is 157991. The next prime is 157999. The reversal of 157994 is 499751.

157994 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in 2 ways, for example, as 97969 + 60025 = 313^2 + 245^2 .

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

It is a nialpdrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 157994.

It is not an unprimeable number, because it can be changed into a prime (157991) 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, 194 + ... + 594.

2¹⁵⁷⁹⁹⁴ is an apocalyptic number.

157994 is a deficient number, since it is larger than the sum of its proper divisors (80794).

157994 is a wasteful number, since it uses less digits than its factorization.

157994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600.

The product of its digits is 11340, while the sum is 35.

The square root of 157994 is about 397.4845908963. The cubic root of 157994 is about 54.0605174298.

The spelling of 157994 in words is "one hundred fifty-seven thousand, nine hundred ninety-four".