180145128 has 32 divisors (see below), whose sum is σ = 451258560. Its totient is φ = 59928960.

The previous prime is 180145127. The next prime is 180145153. The reversal of 180145128 is 821541081.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 180145095 and 180145104.

It is not an unprimeable number, because it can be changed into a prime (180145127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5301 + ... + 19707.

It is an arithmetic number, because the mean of its divisors is an integer number (14101830).

Almost surely, 2^180145128 is an apocalyptic number.

It is an amenable number.

180145128 is an abundant number, since it is smaller than the sum of its proper divisors (271113432).

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

180145128 is a wasteful number, since it uses less digits than its factorization.

180145128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14937 (or 14933 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 180145128 is about 13421.8153764683. The cubic root of 180145128 is about 564.7733217610.

The spelling of 180145128 in words is "one hundred eighty million, one hundred forty-five thousand, one hundred twenty-eight".