113157481 has 2 divisors, whose sum is σ = 113157482. Its totient is φ = 113157480.

The previous prime is 113157463. The next prime is 113157487. The reversal of 113157481 is 184751311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83083225 + 30074256 = 9115^2 + 5484^2 .

It is a cyclic number.

It is not a de Polignac number, because 113157481 - 2⁷ = 113157353 is a prime.

It is a super-2 number, since 2×113157481² = 25609231012530722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113157487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56578740 + 56578741.

It is an arithmetic number, because the mean of its divisors is an integer number (56578741).

Almost surely, 2^113157481 is an apocalyptic number.

It is an amenable number.

113157481 is a deficient number, since it is larger than the sum of its proper divisors (1).

113157481 is an equidigital number, since it uses as much as digits as its factorization.

113157481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 31.

The square root of 113157481 is about 10637.5505169188. The cubic root of 113157481 is about 483.6832971837.

The spelling of 113157481 in words is "one hundred thirteen million, one hundred fifty-seven thousand, four hundred eighty-one".