145597188 has 24 divisors (see below), whose sum is σ = 370611360. Its totient is φ = 44120320.

The previous prime is 145597187. The next prime is 145597213. The reversal of 145597188 is 881795541.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (145597181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551373 + ... + 551636.

It is an arithmetic number, because the mean of its divisors is an integer number (15442140).

Almost surely, 2^145597188 is an apocalyptic number.

It is an amenable number.

145597188 is an abundant number, since it is smaller than the sum of its proper divisors (225014172).

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

145597188 is a wasteful number, since it uses less digits than its factorization.

145597188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103027 (or 1103025 counting only the distinct ones).

The product of its digits is 403200, while the sum is 48.

The square root of 145597188 is about 12066.3659815207. The cubic root of 145597188 is about 526.0790360593.

The spelling of 145597188 in words is "one hundred forty-five million, five hundred ninety-seven thousand, one hundred eighty-eight".