180868051 has 32 divisors (see below), whose sum is σ = 228300800. Its totient is φ = 139501440.

The previous prime is 180868013. The next prime is 180868057. The reversal of 180868051 is 150868081.

It is not a de Polignac number, because 180868051 - 2⁷ = 180867923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 180868051.

It is not an unprimeable number, because it can be changed into a prime (180868057) 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 31 ways as a sum of consecutive naturals, for example, 999181 + ... + 999361.

It is an arithmetic number, because the mean of its divisors is an integer number (7134400).

Almost surely, 2^180868051 is an apocalyptic number.

180868051 is the 10981-st pentagonal number and also the 7189-th nonagonal number.

180868051 is a deficient number, since it is larger than the sum of its proper divisors (47432749).

180868051 is a wasteful number, since it uses less digits than its factorization.

180868051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419.

The product of its (nonzero) digits is 15360, while the sum is 37.

The square root of 180868051 is about 13448.7193070567. The cubic root of 180868051 is about 565.5277925031.

The spelling of 180868051 in words is "one hundred eighty million, eight hundred sixty-eight thousand, fifty-one".