2102342449 has 2 divisors, whose sum is σ = 2102342450. Its totient is φ = 2102342448.

The previous prime is 2102342399. The next prime is 2102342461. The reversal of 2102342449 is 9442432012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1755191025 + 347151424 = 41895^2 + 18632^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102342449 - 2¹⁵ = 2102309681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2102342449.

It is not a weakly prime, because it can be changed into another prime (2102348449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051171224 + 1051171225.

It is an arithmetic number, because the mean of its divisors is an integer number (1051171225).

Almost surely, 2^2102342449 is an apocalyptic number.

It is an amenable number.

2102342449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102342449 is an equidigital number, since it uses as much as digits as its factorization.

2102342449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 2102342449 is about 45851.3080402293. The cubic root of 2102342449 is about 1281.0551295491.

The spelling of 2102342449 in words is "two billion, one hundred two million, three hundred forty-two thousand, four hundred forty-nine".