180121932 has 18 divisors (see below), whose sum is σ = 455308308. Its totient is φ = 60040632.

The previous prime is 180121927. The next prime is 180121937. The reversal of 180121932 is 239121081.

180121932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (180121927) and next prime (180121937).

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 180121896 and 180121905.

It is not an unprimeable number, because it can be changed into a prime (180121937) 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, 2501658 + ... + 2501729.

It is an arithmetic number, because the mean of its divisors is an integer number (25294906).

Almost surely, 2^180121932 is an apocalyptic number.

180121932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

180121932 is an abundant number, since it is smaller than the sum of its proper divisors (275186376).

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

180121932 is a wasteful number, since it uses less digits than its factorization.

180121932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5003397 (or 5003392 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 180121932 is about 13420.9512330535. The cubic root of 180121932 is about 564.7490801130.

The spelling of 180121932 in words is "one hundred eighty million, one hundred twenty-one thousand, nine hundred thirty-two".