7145658197231 has 2 divisors, whose sum is σ = 7145658197232. Its totient is φ = 7145658197230.

The previous prime is 7145658197143. The next prime is 7145658197257. The reversal of 7145658197231 is 1327918565417.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7145658197231 is a prime.

It is a super-2 number, since 2×7145658197231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7145658197281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3572829098615 + 3572829098616.

It is an arithmetic number, because the mean of its divisors is an integer number (3572829098616).

Almost surely, 2^{7145658197231} is an apocalyptic number.

7145658197231 is a deficient number, since it is larger than the sum of its proper divisors (1).

7145658197231 is an equidigital number, since it uses as much as digits as its factorization.

7145658197231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12700800, while the sum is 59.

The spelling of 7145658197231 in words is "seven trillion, one hundred forty-five billion, six hundred fifty-eight million, one hundred ninety-seven thousand, two hundred thirty-one".