1122840129 has 16 divisors (see below), whose sum is σ = 1513549440. Its totient is φ = 740361600.

The previous prime is 1122840113. The next prime is 1122840149. The reversal of 1122840129 is 9210482211.

It is a happy number.

It is not a de Polignac number, because 1122840129 - 2⁴ = 1122840113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122840096 and 1122840105.

It is not an unprimeable number, because it can be changed into a prime (1122840149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471189 + ... + 473565.

It is an arithmetic number, because the mean of its divisors is an integer number (94596840).

Almost surely, 2^1122840129 is an apocalyptic number.

It is an amenable number.

1122840129 is a deficient number, since it is larger than the sum of its proper divisors (390709311).

1122840129 is a wasteful number, since it uses less digits than its factorization.

1122840129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1122840129 is about 33508.8067379309. The cubic root of 1122840129 is about 1039.3758980501.

The spelling of 1122840129 in words is "one billion, one hundred twenty-two million, eight hundred forty thousand, one hundred twenty-nine".