180138354 has 32 divisors (see below), whose sum is σ = 413717760. Its totient is φ = 51714000.

The previous prime is 180138349. The next prime is 180138383. The reversal of 180138354 is 453831081.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70572 + ... + 73079.

It is an arithmetic number, because the mean of its divisors is an integer number (12928680).

Almost surely, 2^180138354 is an apocalyptic number.

180138354 is an abundant number, since it is smaller than the sum of its proper divisors (233579406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

180138354 is a wasteful number, since it uses less digits than its factorization.

180138354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143686.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 180138354 is about 13421.5630237316. The cubic root of 180138354 is about 564.7662426123.

The spelling of 180138354 in words is "one hundred eighty million, one hundred thirty-eight thousand, three hundred fifty-four".