245245001291 has 2 divisors, whose sum is σ = 245245001292. Its totient is φ = 245245001290.

The previous prime is 245245001269. The next prime is 245245001303. The reversal of 245245001291 is 192100542542.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245245001291 is a prime.

It is a super-2 number, since 2×245245001291² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (245245001791) 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, 122622500645 + 122622500646.

It is an arithmetic number, because the mean of its divisors is an integer number (122622500646).

Almost surely, 2^245245001291 is an apocalyptic number.

245245001291 is a deficient number, since it is larger than the sum of its proper divisors (1).

245245001291 is an equidigital number, since it uses as much as digits as its factorization.

245245001291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 245245001291 in words is "two hundred forty-five billion, two hundred forty-five million, one thousand, two hundred ninety-one".