1122979959 has 12 divisors (see below), whose sum is σ = 1659805576. Its totient is φ = 731242512.

The previous prime is 1122979937. The next prime is 1122979967. The reversal of 1122979959 is 9599792211.

It is not a de Polignac number, because 1122979959 - 2⁸ = 1122979703 is a prime.

It is a super-2 number, since 2×1122979959² = 2522167976631283362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122979909) 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 11 ways as a sum of consecutive naturals, for example, 1450492 + ... + 1451265.

Almost surely, 2^1122979959 is an apocalyptic number.

1122979959 is a deficient number, since it is larger than the sum of its proper divisors (536825617).

1122979959 is a wasteful number, since it uses less digits than its factorization.

1122979959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901806 (or 2901803 counting only the distinct ones).

The product of its digits is 918540, while the sum is 54.

The square root of 1122979959 is about 33510.8931393957. The cubic root of 1122979959 is about 1039.4190415916.

The spelling of 1122979959 in words is "one billion, one hundred twenty-two million, nine hundred seventy-nine thousand, nine hundred fifty-nine".