1612363421 has 4 divisors (see below), whose sum is σ = 1612447200. Its totient is φ = 1612279644.

The previous prime is 1612363397. The next prime is 1612363447. The reversal of 1612363421 is 1243632161.

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 1612363421 - 2³⁰ = 538621597 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 (1612363451) 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, 3050 + ... + 56868.

It is an arithmetic number, because the mean of its divisors is an integer number (403111800).

Almost surely, 2^1612363421 is an apocalyptic number.

It is an amenable number.

1612363421 is a deficient number, since it is larger than the sum of its proper divisors (83779).

1612363421 is an equidigital number, since it uses as much as digits as its factorization.

1612363421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83778.

The product of its digits is 5184, while the sum is 29.

The square root of 1612363421 is about 40154.2453670842. The cubic root of 1612363421 is about 1172.6119407645.

Adding to 1612363421 its reverse (1243632161), we get a palindrome (2855995582).

The spelling of 1612363421 in words is "one billion, six hundred twelve million, three hundred sixty-three thousand, four hundred twenty-one".