147137644 has 12 divisors (see below), whose sum is σ = 257617584. Its totient is φ = 73532624.

The previous prime is 147137633. The next prime is 147137657. The reversal of 147137644 is 446731741.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1449 + ... + 17215.

It is an arithmetic number, because the mean of its divisors is an integer number (21468132).

Almost surely, 2^147137644 is an apocalyptic number.

It is an amenable number.

147137644 is a deficient number, since it is larger than the sum of its proper divisors (110479940).

147137644 is a wasteful number, since it uses less digits than its factorization.

147137644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18104 (or 18102 counting only the distinct ones).

The product of its digits is 56448, while the sum is 37.

The square root of 147137644 is about 12130.0306677271. The cubic root of 147137644 is about 527.9278817554.

The spelling of 147137644 in words is "one hundred forty-seven million, one hundred thirty-seven thousand, six hundred forty-four".