2215401449 has 2 divisors, whose sum is σ = 2215401450. Its totient is φ = 2215401448.

The previous prime is 2215401413. The next prime is 2215401451. The reversal of 2215401449 is 9441045122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1341903424 + 873498025 = 36632^2 + 29555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2215401449 is a prime.

Together with 2215401451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2215401479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107700724 + 1107700725.

It is an arithmetic number, because the mean of its divisors is an integer number (1107700725).

Almost surely, 2^2215401449 is an apocalyptic number.

It is an amenable number.

2215401449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215401449 is an equidigital number, since it uses as much as digits as its factorization.

2215401449 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 32.

The square root of 2215401449 is about 47068.0512556022. The cubic root of 2215401449 is about 1303.6193908529.

The spelling of 2215401449 in words is "two billion, two hundred fifteen million, four hundred one thousand, four hundred forty-nine".