145189604 has 48 divisors (see below), whose sum is σ = 296755200. Its totient is φ = 60873120.

The previous prime is 145189579. The next prime is 145189607. The reversal of 145189604 is 406981541.

145189604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145189604² = 42160042219353632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145189607) 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, 395429 + ... + 395795.

It is an arithmetic number, because the mean of its divisors is an integer number (6182400).

Almost surely, 2^145189604 is an apocalyptic number.

145189604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145189604 is an abundant number, since it is smaller than the sum of its proper divisors (151565596).

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

145189604 is a wasteful number, since it uses less digits than its factorization.

145189604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 145189604 is about 12049.4648843839. The cubic root of 145189604 is about 525.5876763109.

The spelling of 145189604 in words is "one hundred forty-five million, one hundred eighty-nine thousand, six hundred four".