113173505 has 16 divisors (see below), whose sum is σ = 146240640. Its totient is φ = 83764992.

The previous prime is 113173493. The next prime is 113173517. The reversal of 113173505 is 505371311.

It is an interprime number because it is at equal distance from previous prime (113173493) and next prime (113173517).

It is a cyclic number.

It is not a de Polignac number, because 113173505 - 2¹⁸ = 112911361 is a prime.

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, 6269 + ... + 16298.

It is an arithmetic number, because the mean of its divisors is an integer number (9140040).

Almost surely, 2^113173505 is an apocalyptic number.

It is an amenable number.

113173505 is a deficient number, since it is larger than the sum of its proper divisors (33067135).

113173505 is a wasteful number, since it uses less digits than its factorization.

113173505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22648.

The product of its (nonzero) digits is 1575, while the sum is 26.

The square root of 113173505 is about 10638.3036711686. The cubic root of 113173505 is about 483.7061272410.

The spelling of 113173505 in words is "one hundred thirteen million, one hundred seventy-three thousand, five hundred five".