157934281 has 2 divisors, whose sum is σ = 157934282. Its totient is φ = 157934280.

The previous prime is 157934239. The next prime is 157934299. The reversal of 157934281 is 182439751.

157934281 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 can be written as a sum of positive squares in only one way, i.e., 131308681 + 26625600 = 11459^2 + 5160^2 .

It is a cyclic number.

It is not a de Polignac number, because 157934281 - 2¹⁷ = 157803209 is a prime.

It is a super-2 number, since 2×157934281² = 49886474229973922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (157934221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78967140 + 78967141.

It is an arithmetic number, because the mean of its divisors is an integer number (78967141).

Almost surely, 2^157934281 is an apocalyptic number.

It is an amenable number.

157934281 is a deficient number, since it is larger than the sum of its proper divisors (1).

157934281 is an equidigital number, since it uses as much as digits as its factorization.

157934281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 40.

The square root of 157934281 is about 12567.1906566265. The cubic root of 157934281 is about 540.5370525787.

The spelling of 157934281 in words is "one hundred fifty-seven million, nine hundred thirty-four thousand, two hundred eighty-one".