145989004 has 24 divisors (see below), whose sum is σ = 304674048. Its totient is φ = 59846160.

The previous prime is 145988971. The next prime is 145989029. The reversal of 145989004 is 400989541.

145989004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112702 + ... + 113989.

It is an arithmetic number, because the mean of its divisors is an integer number (12694752).

Almost surely, 2^145989004 is an apocalyptic number.

145989004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145989004 is an abundant number, since it is smaller than the sum of its proper divisors (158685044).

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

145989004 is a wasteful number, since it uses less digits than its factorization.

145989004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226725 (or 226723 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 145989004 is about 12082.5909473093. The cubic root of 145989004 is about 526.5505230905.

It can be divided in two parts, 145 and 989004, that multiplied together give a triangular number (143405580 = T₁₆₉₃₅).

The spelling of 145989004 in words is "one hundred forty-five million, nine hundred eighty-nine thousand, four".