144939635 has 4 divisors (see below), whose sum is σ = 173927568. Its totient is φ = 115951704.

The previous prime is 144939623. The next prime is 144939649. The reversal of 144939635 is 536939441.

144939635 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144939635 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14493959 + ... + 14493968.

It is an arithmetic number, because the mean of its divisors is an integer number (43481892).

Almost surely, 2^144939635 is an apocalyptic number.

144939635 is a deficient number, since it is larger than the sum of its proper divisors (28987933).

144939635 is an equidigital number, since it uses as much as digits as its factorization.

144939635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28987932.

The product of its digits is 349920, while the sum is 44.

The square root of 144939635 is about 12039.0877976697. The cubic root of 144939635 is about 525.2858730307.

The spelling of 144939635 in words is "one hundred forty-four million, nine hundred thirty-nine thousand, six hundred thirty-five".