157994027 has 2 divisors, whose sum is σ = 157994028. Its totient is φ = 157994026.

The previous prime is 157993993. The next prime is 157994029. The reversal of 157994027 is 720499751.

157994027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157994027 - 2⁶ = 157993963 is a prime.

It is a super-2 number, since 2×157994027² = 49924225135353458, which contains 22 as substring.

Together with 157994029, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157994029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78997013 + 78997014.

It is an arithmetic number, because the mean of its divisors is an integer number (78997014).

Almost surely, 2^157994027 is an apocalyptic number.

157994027 is a deficient number, since it is larger than the sum of its proper divisors (1).

157994027 is an equidigital number, since it uses as much as digits as its factorization.

157994027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 44.

The square root of 157994027 is about 12569.5674945481. The cubic root of 157994027 is about 540.6052050934.

The spelling of 157994027 in words is "one hundred fifty-seven million, nine hundred ninety-four thousand, twenty-seven".