1121614621 has 4 divisors (see below), whose sum is σ = 1121988672. Its totient is φ = 1121240572.

The previous prime is 1121614601. The next prime is 1121614649. The reversal of 1121614621 is 1264161211.

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 not a de Polignac number, because 1121614621 - 2⁷ = 1121614493 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 (1121614601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182491 + ... + 188536.

It is an arithmetic number, because the mean of its divisors is an integer number (280497168).

Almost surely, 2^1121614621 is an apocalyptic number.

It is an amenable number.

1121614621 is a deficient number, since it is larger than the sum of its proper divisors (374051).

1121614621 is an equidigital number, since it uses as much as digits as its factorization.

1121614621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374050.

The product of its digits is 576, while the sum is 25.

The square root of 1121614621 is about 33490.5153886888. The cubic root of 1121614621 is about 1038.9976230144.

Adding to 1121614621 its reverse (1264161211), we get a palindrome (2385775832).

The spelling of 1121614621 in words is "one billion, one hundred twenty-one million, six hundred fourteen thousand, six hundred twenty-one".