144979215 has 32 divisors (see below), whose sum is σ = 245118720. Its totient is φ = 72969984.

The previous prime is 144979201. The next prime is 144979217. The reversal of 144979215 is 512979441.

It is not a de Polignac number, because 144979215 - 2⁶ = 144979151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144979217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86667 + ... + 88323.

It is an arithmetic number, because the mean of its divisors is an integer number (7659960).

Almost surely, 2^144979215 is an apocalyptic number.

144979215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144979215 is a deficient number, since it is larger than the sum of its proper divisors (100139505).

144979215 is a wasteful number, since it uses less digits than its factorization.

144979215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991.

The product of its digits is 90720, while the sum is 42.

The square root of 144979215 is about 12040.7314977123. The cubic root of 144979215 is about 525.3336835615. Note that the first 3 decimals are identical.

The spelling of 144979215 in words is "one hundred forty-four million, nine hundred seventy-nine thousand, two hundred fifteen".