115406642 has 16 divisors (see below), whose sum is σ = 197393112. Its totient is φ = 50131200.

The previous prime is 115406633. The next prime is 115406671. The reversal of 115406642 is 246604511.

It can be written as a sum of positive squares in 4 ways, for example, as 107516161 + 7890481 = 10369^2 + 2809^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130109 + ... + 130992.

Almost surely, 2^115406642 is an apocalyptic number.

115406642 is a deficient number, since it is larger than the sum of its proper divisors (81986470).

115406642 is a wasteful number, since it uses less digits than its factorization.

115406642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261133.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 115406642 is about 10742.7483448138. The cubic root of 115406642 is about 486.8669206739.

The spelling of 115406642 in words is "one hundred fifteen million, four hundred six thousand, six hundred forty-two".