1143222613 has 16 divisors (see below), whose sum is σ = 1360267776. Its totient is φ = 950019840.

The previous prime is 1143222611. The next prime is 1143222637. The reversal of 1143222613 is 3162223411.

It is not a de Polignac number, because 1143222613 - 2¹ = 1143222611 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 (1143222611) 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, 107373 + ... + 117538.

It is an arithmetic number, because the mean of its divisors is an integer number (85016736).

Almost surely, 2^1143222613 is an apocalyptic number.

1143222613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1143222613 is a deficient number, since it is larger than the sum of its proper divisors (217045163).

1143222613 is a wasteful number, since it uses less digits than its factorization.

1143222613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224964.

The product of its digits is 1728, while the sum is 25.

The square root of 1143222613 is about 33811.5751333770. The cubic root of 1143222613 is about 1045.6273525201.

The spelling of 1143222613 in words is "one billion, one hundred forty-three million, two hundred twenty-two thousand, six hundred thirteen".