113121529 has 2 divisors, whose sum is σ = 113121530. Its totient is φ = 113121528.

The previous prime is 113121523. The next prime is 113121559. The reversal of 113121529 is 925121311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95101504 + 18020025 = 9752^2 + 4245^2 .

It is a cyclic number.

It is not a de Polignac number, because 113121529 - 2⁷ = 113121401 is a prime.

It is not a weakly prime, because it can be changed into another prime (113121523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56560764 + 56560765.

It is an arithmetic number, because the mean of its divisors is an integer number (56560765).

Almost surely, 2^113121529 is an apocalyptic number.

It is an amenable number.

113121529 is a deficient number, since it is larger than the sum of its proper divisors (1).

113121529 is an equidigital number, since it uses as much as digits as its factorization.

113121529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 25.

The square root of 113121529 is about 10635.8605199579. The cubic root of 113121529 is about 483.6320670346.

The spelling of 113121529 in words is "one hundred thirteen million, one hundred twenty-one thousand, five hundred twenty-nine".