157094281 has 2 divisors, whose sum is σ = 157094282. Its totient is φ = 157094280.

The previous prime is 157094251. The next prime is 157094291. The reversal of 157094281 is 182490751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122766400 + 34327881 = 11080^2 + 5859^2 .

It is a cyclic number.

It is not a de Polignac number, because 157094281 - 2¹³ = 157086089 is a prime.

It is a super-2 number, since 2×157094281² = 49357226245813922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157094281.

It is not a weakly prime, because it can be changed into another prime (157094221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78547140 + 78547141.

It is an arithmetic number, because the mean of its divisors is an integer number (78547141).

Almost surely, 2^157094281 is an apocalyptic number.

It is an amenable number.

157094281 is a deficient number, since it is larger than the sum of its proper divisors (1).

157094281 is an equidigital number, since it uses as much as digits as its factorization.

157094281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 157094281 is about 12533.7257429704. The cubic root of 157094281 is about 539.5770361915.

The spelling of 157094281 in words is "one hundred fifty-seven million, ninety-four thousand, two hundred eighty-one".