113826409 has 2 divisors, whose sum is σ = 113826410. Its totient is φ = 113826408.

The previous prime is 113826371. The next prime is 113826431. The reversal of 113826409 is 904628311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111767184 + 2059225 = 10572^2 + 1435^2 .

It is a cyclic number.

It is not a de Polignac number, because 113826409 - 2¹³ = 113818217 is a prime.

It is not a weakly prime, because it can be changed into another prime (113826109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56913204 + 56913205.

It is an arithmetic number, because the mean of its divisors is an integer number (56913205).

Almost surely, 2^113826409 is an apocalyptic number.

It is an amenable number.

113826409 is a deficient number, since it is larger than the sum of its proper divisors (1).

113826409 is an equidigital number, since it uses as much as digits as its factorization.

113826409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 113826409 is about 10668.9460116733. The cubic root of 113826409 is about 484.6345197095.

The spelling of 113826409 in words is "one hundred thirteen million, eight hundred twenty-six thousand, four hundred nine".