4149455969 has 2 divisors, whose sum is σ = 4149455970. Its totient is φ = 4149455968.

The previous prime is 4149455917. The next prime is 4149455971. The reversal of 4149455969 is 9695549414.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4129990225 + 19465744 = 64265^2 + 4412^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4149455969 is a prime.

It is a super-2 number, since 2×4149455969² = 34435969677339457922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 4149455971, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4149455069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2074727984 + 2074727985.

It is an arithmetic number, because the mean of its divisors is an integer number (2074727985).

Almost surely, 2^4149455969 is an apocalyptic number.

It is an amenable number.

4149455969 is a deficient number, since it is larger than the sum of its proper divisors (1).

4149455969 is an equidigital number, since it uses as much as digits as its factorization.

4149455969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6998400, while the sum is 56.

The square root of 4149455969 is about 64416.2709957663. The cubic root of 4149455969 is about 1606.9303506882.

The spelling of 4149455969 in words is "four billion, one hundred forty-nine million, four hundred fifty-five thousand, nine hundred sixty-nine".