144993508 has 12 divisors (see below), whose sum is σ = 276805872. Its totient is φ = 65906120.

The previous prime is 144993481. The next prime is 144993517. The reversal of 144993508 is 805399441.

It is a happy number.

144993508 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 1647610 + ... + 1647697.

It is an arithmetic number, because the mean of its divisors is an integer number (23067156).

Almost surely, 2^144993508 is an apocalyptic number.

It is an amenable number.

144993508 is a deficient number, since it is larger than the sum of its proper divisors (131812364).

144993508 is a wasteful number, since it uses less digits than its factorization.

144993508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295322 (or 3295320 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 144993508 is about 12041.3250101473. The cubic root of 144993508 is about 525.3509466053.

The spelling of 144993508 in words is "one hundred forty-four million, nine hundred ninety-three thousand, five hundred eight".