180133290 has 24 divisors (see below), whose sum is σ = 468346788. Its totient is φ = 48035520.

The previous prime is 180133259. The next prime is 180133307. The reversal of 180133290 is 92331081.

It can be written as a sum of positive squares in 2 ways, for example, as 179747649 + 385641 = 13407^2 + 621^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1000651 + ... + 1000830.

Almost surely, 2^180133290 is an apocalyptic number.

180133290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180133290 is an abundant number, since it is smaller than the sum of its proper divisors (288213498).

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

180133290 is a wasteful number, since it uses less digits than its factorization.

180133290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001494 (or 2001491 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 180133290 is about 13421.3743707565. The cubic root of 180133290 is about 564.7609503781.

The spelling of 180133290 in words is "one hundred eighty million, one hundred thirty-three thousand, two hundred ninety".