162413621 has 4 divisors (see below), whose sum is σ = 162439200. Its totient is φ = 162388044.

The previous prime is 162413617. The next prime is 162413633. The reversal of 162413621 is 126314261.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 162413621 - 2² = 162413617 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162413521) 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, 4790 + ... + 18648.

It is an arithmetic number, because the mean of its divisors is an integer number (40609800).

Almost surely, 2^162413621 is an apocalyptic number.

It is an amenable number.

162413621 is a deficient number, since it is larger than the sum of its proper divisors (25579).

162413621 is a wasteful number, since it uses less digits than its factorization.

162413621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25578.

The product of its digits is 1728, while the sum is 26.

The square root of 162413621 is about 12744.1602704925. The cubic root of 162413621 is about 545.5997336999.

Adding to 162413621 its reverse (126314261), we get a palindrome (288727882).

The spelling of 162413621 in words is "one hundred sixty-two million, four hundred thirteen thousand, six hundred twenty-one".