144815949 has 6 divisors (see below), whose sum is σ = 209178606. Its totient is φ = 96543960.

The previous prime is 144815917. The next prime is 144815969. The reversal of 144815949 is 949518441.

It is a happy number.

144815949 is a `hidden beast` number, since 14 + 48 + 1 + 594 + 9 = 666.

144815949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 123609924 + 21206025 = 11118^2 + 4605^2 .

It is not a de Polignac number, because 144815949 - 2⁵ = 144815917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144815969) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8045322 + ... + 8045339.

It is an arithmetic number, because the mean of its divisors is an integer number (34863101).

Almost surely, 2^144815949 is an apocalyptic number.

It is an amenable number.

144815949 is a deficient number, since it is larger than the sum of its proper divisors (64362657).

144815949 is a wasteful number, since it uses less digits than its factorization.

144815949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16090667 (or 16090664 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 144815949 is about 12033.9498503193. The cubic root of 144815949 is about 525.1364108118.

The spelling of 144815949 in words is "one hundred forty-four million, eight hundred fifteen thousand, nine hundred forty-nine".