2449140247 has 2 divisors, whose sum is σ = 2449140248. Its totient is φ = 2449140246.

The previous prime is 2449140193. The next prime is 2449140251. The reversal of 2449140247 is 7420419442.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2449140247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2449140047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1224570123 + 1224570124.

It is an arithmetic number, because the mean of its divisors is an integer number (1224570124).

Almost surely, 2^2449140247 is an apocalyptic number.

2449140247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2449140247 is an equidigital number, since it uses as much as digits as its factorization.

2449140247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 2449140247 is about 49488.7891042002. The cubic root of 2449140247 is about 1347.9420399006.

Adding to 2449140247 its reverse (7420419442), we get a palindrome (9869559689).

The spelling of 2449140247 in words is "two billion, four hundred forty-nine million, one hundred forty thousand, two hundred forty-seven".