115909345 has 16 divisors (see below), whose sum is σ = 143516880. Its totient is φ = 89800704.

The previous prime is 115909309. The next prime is 115909361. The reversal of 115909345 is 543909511.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 10086976 + 105822369 = 3176^2 + 10287^2 .

It is a cyclic number.

It is not a de Polignac number, because 115909345 - 2¹³ = 115901153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 41761 + ... + 44449.

It is an arithmetic number, because the mean of its divisors is an integer number (8969805).

Almost surely, 2^115909345 is an apocalyptic number.

It is an amenable number.

115909345 is a deficient number, since it is larger than the sum of its proper divisors (27607535).

115909345 is a wasteful number, since it uses less digits than its factorization.

115909345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 115909345 is about 10766.1202389719. The cubic root of 115909345 is about 487.5728157724.

The spelling of 115909345 in words is "one hundred fifteen million, nine hundred nine thousand, three hundred forty-five".