1134231621 has 16 divisors (see below), whose sum is σ = 1543591680. Its totient is φ = 740617920.

The previous prime is 1134231611. The next prime is 1134231661. The reversal of 1134231621 is 1261324311.

It is a happy number.

It is not a de Polignac number, because 1134231621 - 2¹¹ = 1134229573 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1134231591 and 1134231600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1134231611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30771 + ... + 56703.

It is an arithmetic number, because the mean of its divisors is an integer number (96474480).

Almost surely, 2^1134231621 is an apocalyptic number.

It is an amenable number.

1134231621 is a deficient number, since it is larger than the sum of its proper divisors (409360059).

1134231621 is a wasteful number, since it uses less digits than its factorization.

1134231621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26236.

The product of its digits is 864, while the sum is 24.

The square root of 1134231621 is about 33678.3553784920. The cubic root of 1134231621 is about 1042.8789869367.

Adding to 1134231621 its reverse (1261324311), we get a palindrome (2395555932).

The spelling of 1134231621 in words is "one billion, one hundred thirty-four million, two hundred thirty-one thousand, six hundred twenty-one".