7513147249 has 2 divisors, whose sum is σ = 7513147250. Its totient is φ = 7513147248.

The previous prime is 7513147223. The next prime is 7513147303. The reversal of 7513147249 is 9427413157.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6718753024 + 794394225 = 81968^2 + 28185^2 .

It is a cyclic number.

It is not a de Polignac number, because 7513147249 - 2⁵ = 7513147217 is a prime.

It is not a weakly prime, because it can be changed into another prime (7513147949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3756573624 + 3756573625.

It is an arithmetic number, because the mean of its divisors is an integer number (3756573625).

Almost surely, 2^7513147249 is an apocalyptic number.

It is an amenable number.

7513147249 is a deficient number, since it is larger than the sum of its proper divisors (1).

7513147249 is an equidigital number, since it uses as much as digits as its factorization.

7513147249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 7513147249 is about 86678.4128200326. The cubic root of 7513147249 is about 1958.5769248961.

The spelling of 7513147249 in words is "seven billion, five hundred thirteen million, one hundred forty-seven thousand, two hundred forty-nine".