147144621 has 16 divisors (see below), whose sum is σ = 211736000. Its totient is φ = 90357120.

The previous prime is 147144617. The next prime is 147144629. The reversal of 147144621 is 126441741.

It is not a de Polignac number, because 147144621 - 2² = 147144617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147144629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15681 + ... + 23241.

It is an arithmetic number, because the mean of its divisors is an integer number (13233500).

Almost surely, 2^147144621 is an apocalyptic number.

It is an amenable number.

147144621 is a deficient number, since it is larger than the sum of its proper divisors (64591379).

147144621 is a wasteful number, since it uses less digits than its factorization.

147144621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8076.

The product of its digits is 5376, while the sum is 30.

The square root of 147144621 is about 12130.3182563361. The cubic root of 147144621 is about 527.9362260842.

The spelling of 147144621 in words is "one hundred forty-seven million, one hundred forty-four thousand, six hundred twenty-one".