180948618 has 12 divisors (see below), whose sum is σ = 392055378. Its totient is φ = 60316200.

The previous prime is 180948617. The next prime is 180948619. The reversal of 180948618 is 816849081.

It is an interprime number because it is at equal distance from previous prime (180948617) and next prime (180948619).

It can be written as a sum of positive squares in only one way, i.e., 127848249 + 53100369 = 11307^2 + 7287^2 .

It is a super-2 number, since 2×180948618² = 65484804712219848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (180948617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5026333 + ... + 5026368.

Almost surely, 2^180948618 is an apocalyptic number.

180948618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

180948618 is an abundant number, since it is smaller than the sum of its proper divisors (211106760).

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

180948618 is a wasteful number, since it uses less digits than its factorization.

180948618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10052709 (or 10052706 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 180948618 is about 13451.7143145400. The cubic root of 180948618 is about 565.6117507880.

The spelling of 180948618 in words is "one hundred eighty million, nine hundred forty-eight thousand, six hundred eighteen".