115423409 has 2 divisors, whose sum is σ = 115423410. Its totient is φ = 115423408.

The previous prime is 115423403. The next prime is 115423433. The reversal of 115423409 is 904324511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115240225 + 183184 = 10735^2 + 428^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115423409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (115423403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57711704 + 57711705.

It is an arithmetic number, because the mean of its divisors is an integer number (57711705).

Almost surely, 2^115423409 is an apocalyptic number.

It is an amenable number.

115423409 is a deficient number, since it is larger than the sum of its proper divisors (1).

115423409 is an equidigital number, since it uses as much as digits as its factorization.

115423409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 115423409 is about 10743.5287033637. The cubic root of 115423409 is about 486.8904978909.

The spelling of 115423409 in words is "one hundred fifteen million, four hundred twenty-three thousand, four hundred nine".