113139515 has 4 divisors (see below), whose sum is σ = 135767424. Its totient is φ = 90511608.

The previous prime is 113139487. The next prime is 113139583. The reversal of 113139515 is 515931311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113139515 - 2¹⁶ = 113073979 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11313947 + ... + 11313956.

It is an arithmetic number, because the mean of its divisors is an integer number (33941856).

Almost surely, 2^113139515 is an apocalyptic number.

113139515 is a deficient number, since it is larger than the sum of its proper divisors (22627909).

113139515 is an equidigital number, since it uses as much as digits as its factorization.

113139515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22627908.

The product of its digits is 2025, while the sum is 29.

The square root of 113139515 is about 10636.7060220728. The cubic root of 113139515 is about 483.6576977154.

The spelling of 113139515 in words is "one hundred thirteen million, one hundred thirty-nine thousand, five hundred fifteen".