113972215 has 16 divisors (see below), whose sum is σ = 156828672. Its totient is φ = 77890464.

The previous prime is 113972189. The next prime is 113972219. The reversal of 113972215 is 512279311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113972215 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113972219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5442 + ... + 16048.

It is an arithmetic number, because the mean of its divisors is an integer number (9801792).

Almost surely, 2^113972215 is an apocalyptic number.

113972215 is a deficient number, since it is larger than the sum of its proper divisors (42856457).

113972215 is a wasteful number, since it uses less digits than its factorization.

113972215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10926.

The product of its digits is 3780, while the sum is 31.

The square root of 113972215 is about 10675.7770209011. Note that the first 3 decimals coincide. The cubic root of 113972215 is about 484.8413623660.

The spelling of 113972215 in words is "one hundred thirteen million, nine hundred seventy-two thousand, two hundred fifteen".