332121613 has 4 divisors (see below), whose sum is σ = 337078720. Its totient is φ = 327164508.

The previous prime is 332121589. The next prime is 332121617. The reversal of 332121613 is 316121233.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-332121613 is a prime.

It is a super-2 number, since 2×332121613² = 220609531643443538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332121617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2478453 + ... + 2478586.

It is an arithmetic number, because the mean of its divisors is an integer number (84269680).

Almost surely, 2^332121613 is an apocalyptic number.

It is an amenable number.

332121613 is a deficient number, since it is larger than the sum of its proper divisors (4957107).

332121613 is an equidigital number, since it uses as much as digits as its factorization.

332121613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4957106.

The product of its digits is 648, while the sum is 22.

The square root of 332121613 is about 18224.2040429754. The cubic root of 332121613 is about 692.5200942963.

Adding to 332121613 its reverse (316121233), we get a palindrome (648242846).

The spelling of 332121613 in words is "three hundred thirty-two million, one hundred twenty-one thousand, six hundred thirteen".