245242120163 has 2 divisors, whose sum is σ = 245242120164. Its totient is φ = 245242120162.

The previous prime is 245242120121. The next prime is 245242120169. The reversal of 245242120163 is 361021242542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245242120163 - 2²² = 245237925859 is a prime.

It is a super-2 number, since 2×245242120163² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (245242120169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122621060081 + 122621060082.

It is an arithmetic number, because the mean of its divisors is an integer number (122621060082).

Almost surely, 2^245242120163 is an apocalyptic number.

245242120163 is a deficient number, since it is larger than the sum of its proper divisors (1).

245242120163 is an equidigital number, since it uses as much as digits as its factorization.

245242120163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 245242120163 in words is "two hundred forty-five billion, two hundred forty-two million, one hundred twenty thousand, one hundred sixty-three".