180499225 has 9 divisors (see below), whose sum is σ = 223902367. Its totient is φ = 144345640.

The previous prime is 180499201. The next prime is 180499243. The reversal of 180499225 is 522994081.

The square root of 180499225 is 13435.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 64979721 + 115519504 = 8061^2 + 10748^2 .

It is not a de Polignac number, because 180499225 - 2⁹ = 180498713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 65832 + ... + 68518.

Almost surely, 2^180499225 is an apocalyptic number.

180499225 is the 13435-th square number.

180499225 is the 6718-th centered octagonal number.

It is an amenable number.

180499225 is a deficient number, since it is larger than the sum of its proper divisors (43403142).

180499225 is an frugal number, since it uses more digits than its factorization.

180499225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5384 (or 2692 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The cubic root of 180499225 is about 565.1431229555.

The spelling of 180499225 in words is "one hundred eighty million, four hundred ninety-nine thousand, two hundred twenty-five".