115906690 has 8 divisors (see below), whose sum is σ = 208632060. Its totient is φ = 46362672.

The previous prime is 115906673. The next prime is 115906709. The reversal of 115906690 is 96609511.

It can be written as a sum of positive squares in 2 ways, for example, as 112763161 + 3143529 = 10619^2 + 1773^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×115906690² = 26868721573512200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5795325 + ... + 5795344.

Almost surely, 2^115906690 is an apocalyptic number.

115906690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115906690 is a deficient number, since it is larger than the sum of its proper divisors (92725370).

115906690 is a wasteful number, since it uses less digits than its factorization.

115906690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11590676.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 115906690 is about 10765.9969347943. The cubic root of 115906690 is about 487.5690929903.

The spelling of 115906690 in words is "one hundred fifteen million, nine hundred six thousand, six hundred ninety".