145500188 has 12 divisors (see below), whose sum is σ = 255738840. Its totient is φ = 72431952.

The previous prime is 145500181. The next prime is 145500193. The reversal of 145500188 is 881005541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145500181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78506 + ... + 80337.

It is an arithmetic number, because the mean of its divisors is an integer number (21311570).

Almost surely, 2^145500188 is an apocalyptic number.

It is an amenable number.

145500188 is a deficient number, since it is larger than the sum of its proper divisors (110238652).

145500188 is a wasteful number, since it uses less digits than its factorization.

145500188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159076 (or 159074 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 145500188 is about 12062.3458746630. The cubic root of 145500188 is about 525.9621816892.

The spelling of 145500188 in words is "one hundred forty-five million, five hundred thousand, one hundred eighty-eight".