1143132621 has 4 divisors (see below), whose sum is σ = 1524176832. Its totient is φ = 762088412.

The previous prime is 1143132553. The next prime is 1143132629. The reversal of 1143132621 is 1262313411.

It is a happy number.

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 1143132621 - 2¹⁰ = 1143131597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1143132591 and 1143132600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143132629) 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, 190522101 + ... + 190522106.

It is an arithmetic number, because the mean of its divisors is an integer number (381044208).

Almost surely, 2^1143132621 is an apocalyptic number.

It is an amenable number.

1143132621 is a deficient number, since it is larger than the sum of its proper divisors (381044211).

1143132621 is an equidigital number, since it uses as much as digits as its factorization.

1143132621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381044210.

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

The square root of 1143132621 is about 33810.2443203240. The cubic root of 1143132621 is about 1045.5999152958.

The spelling of 1143132621 in words is "one billion, one hundred forty-three million, one hundred thirty-two thousand, six hundred twenty-one".