1121612959 has 8 divisors (see below), whose sum is σ = 1182086000. Its totient is φ = 1061284032.

The previous prime is 1121612909. The next prime is 1121613011. The reversal of 1121612959 is 9592161211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121612959 - 2⁷ = 1121612831 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 (1121612909) 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 7 ways as a sum of consecutive naturals, for example, 19854 + ... + 51355.

It is an arithmetic number, because the mean of its divisors is an integer number (147760750).

Almost surely, 2^1121612959 is an apocalyptic number.

1121612959 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1121612959 is a deficient number, since it is larger than the sum of its proper divisors (60473041).

1121612959 is an equidigital number, since it uses as much as digits as its factorization.

1121612959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72057.

The product of its digits is 9720, while the sum is 37.

The square root of 1121612959 is about 33490.4905756843. The cubic root of 1121612959 is about 1038.9971098212.

The spelling of 1121612959 in words is "one billion, one hundred twenty-one million, six hundred twelve thousand, nine hundred fifty-nine".