183972085 has 16 divisors (see below), whose sum is σ = 249143040. Its totient is φ = 129183040.

The previous prime is 183972067. The next prime is 183972097. The reversal of 183972085 is 580279381.

It is not a de Polignac number, because 183972085 - 2²¹ = 181874933 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 56077 + ... + 59266.

It is an arithmetic number, because the mean of its divisors is an integer number (15571440).

Almost surely, 2^183972085 is an apocalyptic number.

It is an amenable number.

183972085 is a deficient number, since it is larger than the sum of its proper divisors (65170955).

183972085 is a wasteful number, since it uses less digits than its factorization.

183972085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115388.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 183972085 is about 13563.6309666697. The cubic root of 183972085 is about 568.7446312740.

The spelling of 183972085 in words is "one hundred eighty-three million, nine hundred seventy-two thousand, eighty-five".