113287816 has 8 divisors (see below), whose sum is σ = 212414670. Its totient is φ = 56643904.

The previous prime is 113287807. The next prime is 113287819. The reversal of 113287816 is 618782311.

It can be written as a sum of positive squares in only one way, i.e., 112572100 + 715716 = 10610^2 + 846^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (113287819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7080481 + ... + 7080496.

Almost surely, 2^113287816 is an apocalyptic number.

It is an amenable number.

113287816 is a deficient number, since it is larger than the sum of its proper divisors (99126854).

113287816 is a wasteful number, since it uses less digits than its factorization.

113287816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14160983 (or 14160979 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 113287816 is about 10643.6749292714. The cubic root of 113287816 is about 483.8689283764.

The spelling of 113287816 in words is "one hundred thirteen million, two hundred eighty-seven thousand, eight hundred sixteen".