180149855 has 16 divisors (see below), whose sum is σ = 224333760. Its totient is φ = 138765312.

The previous prime is 180149831. The next prime is 180149891. The reversal of 180149855 is 558941081.

It is a cyclic number.

It is not a de Polignac number, because 180149855 - 2¹⁰ = 180148831 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12926 + ... + 22964.

It is an arithmetic number, because the mean of its divisors is an integer number (14020860).

Almost surely, 2^180149855 is an apocalyptic number.

180149855 is a deficient number, since it is larger than the sum of its proper divisors (44183905).

180149855 is a wasteful number, since it uses less digits than its factorization.

180149855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10178.

The product of its (nonzero) digits is 57600, while the sum is 41.

The square root of 180149855 is about 13421.9914692269. The cubic root of 180149855 is about 564.7782615932.

The spelling of 180149855 in words is "one hundred eighty million, one hundred forty-nine thousand, eight hundred fifty-five".