1413612421 has 4 divisors (see below), whose sum is σ = 1522351852. Its totient is φ = 1304872992.

The previous prime is 1413612419. The next prime is 1413612427. The reversal of 1413612421 is 1242163141.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 639381796 + 774230625 = 25286^2 + 27825^2 .

It is a cyclic number.

It is not a de Polignac number, because 1413612421 - 2¹ = 1413612419 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 (1413612427) 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, 54369696 + ... + 54369721.

It is an arithmetic number, because the mean of its divisors is an integer number (380587963).

Almost surely, 2^1413612421 is an apocalyptic number.

It is an amenable number.

1413612421 is a deficient number, since it is larger than the sum of its proper divisors (108739431).

1413612421 is a wasteful number, since it uses less digits than its factorization.

1413612421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108739430.

The product of its digits is 1152, while the sum is 25.

The square root of 1413612421 is about 37598.0374620804. The cubic root of 1413612421 is about 1122.3029836946.

Adding to 1413612421 its reverse (1242163141), we get a palindrome (2655775562).

The spelling of 1413612421 in words is "one billion, four hundred thirteen million, six hundred twelve thousand, four hundred twenty-one".