145965924 has 72 divisors (see below), whose sum is σ = 403944632. Its totient is φ = 44167680.

The previous prime is 145965877. The next prime is 145965929. The reversal of 145965924 is 429569541.

145965924 is a `hidden beast` number, since 1 + 4 + 59 + 6 + 592 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 27373824 + 118592100 = 5232^2 + 10890^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 145965924.

It is not an unprimeable number, because it can be changed into a prime (145965929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25992 + ... + 31104.

Almost surely, 2^145965924 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145965924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201972316).

145965924 is an abundant number, since it is smaller than the sum of its proper divisors (257978708).

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

145965924 is a wasteful number, since it uses less digits than its factorization.

145965924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5197 (or 5192 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 145965924 is about 12081.6358163951. The cubic root of 145965924 is about 526.5227734513.

The spelling of 145965924 in words is "one hundred forty-five million, nine hundred sixty-five thousand, nine hundred twenty-four".