811452049 has 2 divisors, whose sum is σ = 811452050. Its totient is φ = 811452048.

The previous prime is 811452023. The next prime is 811452053. The reversal of 811452049 is 940254118.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 806957649 + 4494400 = 28407^2 + 2120^2 .

It is a cyclic number.

It is not a de Polignac number, because 811452049 - 2²³ = 803063441 is a prime.

It is not a weakly prime, because it can be changed into another prime (811452349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405726024 + 405726025.

It is an arithmetic number, because the mean of its divisors is an integer number (405726025).

Almost surely, 2^811452049 is an apocalyptic number.

It is an amenable number.

811452049 is a deficient number, since it is larger than the sum of its proper divisors (1).

811452049 is an equidigital number, since it uses as much as digits as its factorization.

811452049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 811452049 is about 28485.9974197850. The cubic root of 811452049 is about 932.7264382642.

The spelling of 811452049 in words is "eight hundred eleven million, four hundred fifty-two thousand, forty-nine".