2112452009 has 2 divisors, whose sum is σ = 2112452010. Its totient is φ = 2112452008.

The previous prime is 2112451987. The next prime is 2112452033. The reversal of 2112452009 is 9002542112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2110483600 + 1968409 = 45940^2 + 1403^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112452009 - 2²⁰ = 2111403433 is a prime.

It is not a weakly prime, because it can be changed into another prime (2112452059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056226004 + 1056226005.

It is an arithmetic number, because the mean of its divisors is an integer number (1056226005).

Almost surely, 2^2112452009 is an apocalyptic number.

It is an amenable number.

2112452009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112452009 is an equidigital number, since it uses as much as digits as its factorization.

2112452009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2112452009 is about 45961.4187009061. The cubic root of 2112452009 is about 1283.1052554179.

The spelling of 2112452009 in words is "two billion, one hundred twelve million, four hundred fifty-two thousand, nine".