1641414449 has 2 divisors, whose sum is σ = 1641414450. Its totient is φ = 1641414448.

The previous prime is 1641414431. The next prime is 1641414479. The reversal of 1641414449 is 9444141461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1618613824 + 22800625 = 40232^2 + 4775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1641414449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1641414419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820707224 + 820707225.

It is an arithmetic number, because the mean of its divisors is an integer number (820707225).

Almost surely, 2^1641414449 is an apocalyptic number.

It is an amenable number.

1641414449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1641414449 is an equidigital number, since it uses as much as digits as its factorization.

1641414449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 38.

The square root of 1641414449 is about 40514.3733630424. The cubic root of 1641414449 is about 1179.6126395403.

The spelling of 1641414449 in words is "one billion, six hundred forty-one million, four hundred fourteen thousand, four hundred forty-nine".