245399454143 has 2 divisors, whose sum is σ = 245399454144. Its totient is φ = 245399454142.

The previous prime is 245399454127. The next prime is 245399454191. The reversal of 245399454143 is 341454993542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245399454143 - 2⁴ = 245399454127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245399459143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122699727071 + 122699727072.

It is an arithmetic number, because the mean of its divisors is an integer number (122699727072).

Almost surely, 2^245399454143 is an apocalyptic number.

245399454143 is a deficient number, since it is larger than the sum of its proper divisors (1).

245399454143 is an equidigital number, since it uses as much as digits as its factorization.

245399454143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9331200, while the sum is 53.

The spelling of 245399454143 in words is "two hundred forty-five billion, three hundred ninety-nine million, four hundred fifty-four thousand, one hundred forty-three".