147919144 has 32 divisors (see below), whose sum is σ = 288809640. Its totient is φ = 70963200.

The previous prime is 147919139. The next prime is 147919171. The reversal of 147919144 is 441919741.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23328900 + 124590244 = 4830^2 + 11162^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 147919097 and 147919106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16312 + ... + 23704.

Almost surely, 2^147919144 is an apocalyptic number.

It is an amenable number.

147919144 is a deficient number, since it is larger than the sum of its proper divisors (140890496).

147919144 is a wasteful number, since it uses less digits than its factorization.

147919144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7501 (or 7497 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The square root of 147919144 is about 12162.2014454621. The cubic root of 147919144 is about 528.8609023185.

The spelling of 147919144 in words is "one hundred forty-seven million, nine hundred nineteen thousand, one hundred forty-four".