1124441621 has 4 divisors (see below), whose sum is σ = 1163215500. Its totient is φ = 1085667744.

The previous prime is 1124441599. The next prime is 1124441623. The reversal of 1124441621 is 1261444211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1261444211 = 1361 ⋅926851.

It can be written as a sum of positive squares in 2 ways, for example, as 250588900 + 873852721 = 15830^2 + 29561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1124441621 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 (1124441623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19386896 + ... + 19386953.

It is an arithmetic number, because the mean of its divisors is an integer number (290803875).

Almost surely, 2^1124441621 is an apocalyptic number.

It is an amenable number.

1124441621 is a deficient number, since it is larger than the sum of its proper divisors (38773879).

1124441621 is an equidigital number, since it uses as much as digits as its factorization.

1124441621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38773878.

The product of its digits is 1536, while the sum is 26.

The square root of 1124441621 is about 33532.6948067107. The cubic root of 1124441621 is about 1039.8698126609.

Adding to 1124441621 its reverse (1261444211), we get a palindrome (2385885832).

The spelling of 1124441621 in words is "one billion, one hundred twenty-four million, four hundred forty-one thousand, six hundred twenty-one".