180115490 has 16 divisors (see below), whose sum is σ = 326085048. Its totient is φ = 71629056.

The previous prime is 180115469. The next prime is 180115499. The reversal of 180115490 is 94511081.

It can be written as a sum of positive squares in 4 ways, for example, as 153685609 + 26429881 = 12397^2 + 5141^2 .

It is not an unprimeable number, because it can be changed into a prime (180115499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50327 + ... + 53786.

Almost surely, 2^180115490 is an apocalyptic number.

180115490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180115490 is a deficient number, since it is larger than the sum of its proper divisors (145969558).

180115490 is a wasteful number, since it uses less digits than its factorization.

180115490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104293.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 180115490 is about 13420.7112330159. The cubic root of 180115490 is about 564.7423473461.

The spelling of 180115490 in words is "one hundred eighty million, one hundred fifteen thousand, four hundred ninety".