115342009 has 2 divisors, whose sum is σ = 115342010. Its totient is φ = 115342008.

The previous prime is 115341997. The next prime is 115342013. The reversal of 115342009 is 900243511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78375609 + 36966400 = 8853^2 + 6080^2 .

It is an emirp because it is prime and its reverse (900243511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115342009 - 2⁷ = 115341881 is a prime.

It is not a weakly prime, because it can be changed into another prime (115342099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57671004 + 57671005.

It is an arithmetic number, because the mean of its divisors is an integer number (57671005).

Almost surely, 2^115342009 is an apocalyptic number.

It is an amenable number.

115342009 is a deficient number, since it is larger than the sum of its proper divisors (1).

115342009 is an equidigital number, since it uses as much as digits as its factorization.

115342009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 115342009 is about 10739.7397082052. The cubic root of 115342009 is about 486.7760144504.

The spelling of 115342009 in words is "one hundred fifteen million, three hundred forty-two thousand, nine".