1121746129 has 32 divisors (see below), whose sum is σ = 1375488000. Its totient is φ = 894136320.

The previous prime is 1121746123. The next prime is 1121746159. The reversal of 1121746129 is 9216471211.

It is not a de Polignac number, because 1121746129 - 2⁷ = 1121746001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121746094 and 1121746103.

It is not an unprimeable number, because it can be changed into a prime (1121746123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2498097 + ... + 2498545.

It is an arithmetic number, because the mean of its divisors is an integer number (42984000).

Almost surely, 2^1121746129 is an apocalyptic number.

It is an amenable number.

1121746129 is a deficient number, since it is larger than the sum of its proper divisors (253741871).

1121746129 is a wasteful number, since it uses less digits than its factorization.

1121746129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913.

The product of its digits is 6048, while the sum is 34.

The square root of 1121746129 is about 33492.4786929842. The cubic root of 1121746129 is about 1039.0382285121.

The spelling of 1121746129 in words is "one billion, one hundred twenty-one million, seven hundred forty-six thousand, one hundred twenty-nine".