145744868 has 24 divisors (see below), whose sum is σ = 260080800. Its totient is φ = 71443008.

The previous prime is 145744867. The next prime is 145744883. The reversal of 145744868 is 868447541.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (145744861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128528 + ... + 129656.

It is an arithmetic number, because the mean of its divisors is an integer number (10836700).

Almost surely, 2^145744868 is an apocalyptic number.

It is an amenable number.

145744868 is a deficient number, since it is larger than the sum of its proper divisors (114335932).

145744868 is a wasteful number, since it uses less digits than its factorization.

145744868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739 (or 1737 counting only the distinct ones).

The product of its digits is 860160, while the sum is 47.

The square root of 145744868 is about 12072.4839200556. The cubic root of 145744868 is about 526.2568442077.

The spelling of 145744868 in words is "one hundred forty-five million, seven hundred forty-four thousand, eight hundred sixty-eight".