180656113 has 4 divisors (see below), whose sum is σ = 197079408. Its totient is φ = 164232820.

The previous prime is 180656107. The next prime is 180656131. The reversal of 180656113 is 311656081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180656113 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180656143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8211631 + ... + 8211652.

It is an arithmetic number, because the mean of its divisors is an integer number (49269852).

Almost surely, 2^180656113 is an apocalyptic number.

It is an amenable number.

180656113 is a deficient number, since it is larger than the sum of its proper divisors (16423295).

180656113 is a wasteful number, since it uses less digits than its factorization.

180656113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16423294.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 180656113 is about 13440.8375111077. The cubic root of 180656113 is about 565.3068143287.

The spelling of 180656113 in words is "one hundred eighty million, six hundred fifty-six thousand, one hundred thirteen".