115649285 has 16 divisors (see below), whose sum is σ = 141834240. Its totient is φ = 90504960.

The previous prime is 115649269. The next prime is 115649291. The reversal of 115649285 is 582946511.

It is not a de Polignac number, because 115649285 - 2⁴ = 115649269 is a prime.

It is a super-2 number, since 2×115649285² = 26749514242022450, which contains 22 as substring.

It is a congruent number.

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, 43340 + ... + 45930.

It is an arithmetic number, because the mean of its divisors is an integer number (8864640).

Almost surely, 2^115649285 is an apocalyptic number.

It is an amenable number.

115649285 is a deficient number, since it is larger than the sum of its proper divisors (26184955).

115649285 is a wasteful number, since it uses less digits than its factorization.

115649285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788.

The product of its digits is 86400, while the sum is 41.

The square root of 115649285 is about 10754.0357540786. The cubic root of 115649285 is about 487.2078951381.

The spelling of 115649285 in words is "one hundred fifteen million, six hundred forty-nine thousand, two hundred eighty-five".