1122140689 has 4 divisors (see below), whose sum is σ = 1140536500. Its totient is φ = 1103744880.

The previous prime is 1122140671. The next prime is 1122140693. The reversal of 1122140689 is 9860412211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 218537089 + 903603600 = 14783^2 + 30060^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122140689 - 2⁷ = 1122140561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122140639) 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, 9197814 + ... + 9197935.

It is an arithmetic number, because the mean of its divisors is an integer number (285134125).

Almost surely, 2^1122140689 is an apocalyptic number.

It is an amenable number.

1122140689 is a deficient number, since it is larger than the sum of its proper divisors (18395811).

1122140689 is an equidigital number, since it uses as much as digits as its factorization.

1122140689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18395810.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 1122140689 is about 33498.3684528068. The cubic root of 1122140689 is about 1039.1600370793.

The spelling of 1122140689 in words is "one billion, one hundred twenty-two million, one hundred forty thousand, six hundred eighty-nine".