402309113 has 2 divisors, whose sum is σ = 402309114. Its totient is φ = 402309112.

The previous prime is 402309109. The next prime is 402309133. The reversal of 402309113 is 311903204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 390931984 + 11377129 = 19772^2 + 3373^2 .

It is a cyclic number.

It is not a de Polignac number, because 402309113 - 2² = 402309109 is a prime.

It is not a weakly prime, because it can be changed into another prime (402309133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201154556 + 201154557.

It is an arithmetic number, because the mean of its divisors is an integer number (201154557).

Almost surely, 2^402309113 is an apocalyptic number.

It is an amenable number.

402309113 is a deficient number, since it is larger than the sum of its proper divisors (1).

402309113 is an equidigital number, since it uses as much as digits as its factorization.

402309113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 402309113 is about 20057.6447520640. The cubic root of 402309113 is about 738.2213877171.

The spelling of 402309113 in words is "four hundred two million, three hundred nine thousand, one hundred thirteen".