1122375509 has 4 divisors (see below), whose sum is σ = 1122448320. Its totient is φ = 1122302700.

The previous prime is 1122375503. The next prime is 1122375517. The reversal of 1122375509 is 9055732211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9055732211 = 157 ⋅57679823.

It is a cyclic number.

It is not a de Polignac number, because 1122375509 - 2⁴ = 1122375493 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 (1122375503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3167 + ... + 47484.

It is an arithmetic number, because the mean of its divisors is an integer number (280612080).

Almost surely, 2^1122375509 is an apocalyptic number.

It is an amenable number.

1122375509 is a deficient number, since it is larger than the sum of its proper divisors (72811).

1122375509 is an equidigital number, since it uses as much as digits as its factorization.

1122375509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72810.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 1122375509 is about 33501.8732162845. The cubic root of 1122375509 is about 1039.2325171594.

The spelling of 1122375509 in words is "one billion, one hundred twenty-two million, three hundred seventy-five thousand, five hundred nine".