7245641287 has 2 divisors, whose sum is σ = 7245641288. Its totient is φ = 7245641286.

The previous prime is 7245641269. The next prime is 7245641303. The reversal of 7245641287 is 7821465427.

It is a strong prime.

It is an emirp because it is prime and its reverse (7821465427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7245641287 - 2²³ = 7237252679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7245641267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3622820643 + 3622820644.

It is an arithmetic number, because the mean of its divisors is an integer number (3622820644).

Almost surely, 2^7245641287 is an apocalyptic number.

7245641287 is a deficient number, since it is larger than the sum of its proper divisors (1).

7245641287 is an equidigital number, since it uses as much as digits as its factorization.

7245641287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 752640, while the sum is 46.

The square root of 7245641287 is about 85121.3327374519. The cubic root of 7245641287 is about 1935.0503795637.

The spelling of 7245641287 in words is "seven billion, two hundred forty-five million, six hundred forty-one thousand, two hundred eighty-seven".