144772893 has 8 divisors (see below), whose sum is σ = 214478400. Its totient is φ = 96515244.

The previous prime is 144772877. The next prime is 144772907. The reversal of 144772893 is 398277441.

It is not a de Polignac number, because 144772893 - 2⁴ = 144772877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144772813) 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, 2680953 + ... + 2681006.

It is an arithmetic number, because the mean of its divisors is an integer number (26809800).

Almost surely, 2^144772893 is an apocalyptic number.

It is an amenable number.

144772893 is a deficient number, since it is larger than the sum of its proper divisors (69705507).

144772893 is an equidigital number, since it uses as much as digits as its factorization.

144772893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5361968 (or 5361962 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 144772893 is about 12032.1607785136. The cubic root of 144772893 is about 525.0843619534.

The spelling of 144772893 in words is "one hundred forty-four million, seven hundred seventy-two thousand, eight hundred ninety-three".