1117022391 has 6 divisors (see below), whose sum is σ = 1613476800. Its totient is φ = 744681588.

The previous prime is 1117022371. The next prime is 1117022443. The reversal of 1117022391 is 1932207111.

It is not a de Polignac number, because 1117022391 - 2¹⁷ = 1116891319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117022371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62056791 + ... + 62056808.

It is an arithmetic number, because the mean of its divisors is an integer number (268912800).

Almost surely, 2^1117022391 is an apocalyptic number.

1117022391 is a deficient number, since it is larger than the sum of its proper divisors (496454409).

1117022391 is a wasteful number, since it uses less digits than its factorization.

1117022391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124113605 (or 124113602 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 1117022391 is about 33421.8849109382. The cubic root of 1117022391 is about 1037.5776930447.

The spelling of 1117022391 in words is "one billion, one hundred seventeen million, twenty-two thousand, three hundred ninety-one".