1121407917 has 8 divisors (see below), whose sum is σ = 1708812096. Its totient is φ = 640804512.

The previous prime is 1121407909. The next prime is 1121407939. The reversal of 1121407917 is 7197041211.

It is a happy number.

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

It is not a de Polignac number, because 1121407917 - 2³ = 1121407909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121407997) 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, 26700168 + ... + 26700209.

It is an arithmetic number, because the mean of its divisors is an integer number (213601512).

Almost surely, 2^1121407917 is an apocalyptic number.

It is an amenable number.

1121407917 is a deficient number, since it is larger than the sum of its proper divisors (587404179).

1121407917 is an equidigital number, since it uses as much as digits as its factorization.

1121407917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53400387.

The product of its (nonzero) digits is 3528, while the sum is 33.

The square root of 1121407917 is about 33487.4292384471. The cubic root of 1121407917 is about 1038.9337929623.

The spelling of 1121407917 in words is "one billion, one hundred twenty-one million, four hundred seven thousand, nine hundred seventeen".