180390133 has 16 divisors (see below), whose sum is σ = 230984064. Its totient is φ = 136762560.

The previous prime is 180390131. The next prime is 180390137. The reversal of 180390133 is 331093081.

It is not a de Polignac number, because 180390133 - 2¹ = 180390131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180390131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28810 + ... + 34507.

It is an arithmetic number, because the mean of its divisors is an integer number (14436504).

Almost surely, 2^180390133 is an apocalyptic number.

It is an amenable number.

180390133 is a deficient number, since it is larger than the sum of its proper divisors (50593931).

180390133 is a wasteful number, since it uses less digits than its factorization.

180390133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63372.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 180390133 is about 13430.9393938027. The cubic root of 180390133 is about 565.0292443160.

The spelling of 180390133 in words is "one hundred eighty million, three hundred ninety thousand, one hundred thirty-three".