180158572 has 12 divisors (see below), whose sum is σ = 343939176. Its totient is φ = 81890240.

The previous prime is 180158569. The next prime is 180158581. The reversal of 180158572 is 275851081.

It is a super-2 number, since 2×180158572² = 64914222130158368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2047213 + ... + 2047300.

It is an arithmetic number, because the mean of its divisors is an integer number (28661598).

Almost surely, 2^180158572 is an apocalyptic number.

It is an amenable number.

180158572 is a deficient number, since it is larger than the sum of its proper divisors (163780604).

180158572 is a wasteful number, since it uses less digits than its factorization.

180158572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4094528 (or 4094526 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 37.

The square root of 180158572 is about 13422.3161935636. The cubic root of 180158572 is about 564.7873708478.

The spelling of 180158572 in words is "one hundred eighty million, one hundred fifty-eight thousand, five hundred seventy-two".