113156129 has 2 divisors, whose sum is σ = 113156130. Its totient is φ = 113156128.

The previous prime is 113156123. The next prime is 113156137. The reversal of 113156129 is 921651311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78287104 + 34869025 = 8848^2 + 5905^2 .

It is a cyclic number.

It is not a de Polignac number, because 113156129 - 2⁸ = 113155873 is a prime.

It is not a weakly prime, because it can be changed into another prime (113156123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56578064 + 56578065.

It is an arithmetic number, because the mean of its divisors is an integer number (56578065).

Almost surely, 2^113156129 is an apocalyptic number.

It is an amenable number.

113156129 is a deficient number, since it is larger than the sum of its proper divisors (1).

113156129 is an equidigital number, since it uses as much as digits as its factorization.

113156129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 29.

The square root of 113156129 is about 10637.4869682646. The cubic root of 113156129 is about 483.6813708346.

The spelling of 113156129 in words is "one hundred thirteen million, one hundred fifty-six thousand, one hundred twenty-nine".