180462138 has 32 divisors (see below), whose sum is σ = 368831232. Its totient is φ = 58843200.

The previous prime is 180462137. The next prime is 180462143. The reversal of 180462138 is 831264081.

It is a junction number, because it is equal to n+sod(n) for n = 180462099 and 180462108.

It is not an unprimeable number, because it can be changed into a prime (180462131) 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, 145983 + ... + 147213.

It is an arithmetic number, because the mean of its divisors is an integer number (11525976).

Almost surely, 2^180462138 is an apocalyptic number.

180462138 is an abundant number, since it is smaller than the sum of its proper divisors (188369094).

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

180462138 is a wasteful number, since it uses less digits than its factorization.

180462138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 180462138 is about 13433.6196909098. The cubic root of 180462138 is about 565.1044138351.

The spelling of 180462138 in words is "one hundred eighty million, four hundred sixty-two thousand, one hundred thirty-eight".