1245801163 has 2 divisors, whose sum is σ = 1245801164. Its totient is φ = 1245801162.

The previous prime is 1245801131. The next prime is 1245801209. The reversal of 1245801163 is 3611085421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1245801163 - 2⁵ = 1245801131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1245801763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622900581 + 622900582.

It is an arithmetic number, because the mean of its divisors is an integer number (622900582).

Almost surely, 2^1245801163 is an apocalyptic number.

1245801163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245801163 is an equidigital number, since it uses as much as digits as its factorization.

1245801163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1245801163 is about 35295.9085872570. The cubic root of 1245801163 is about 1076.0098426314.

Adding to 1245801163 its reverse (3611085421), we get a palindrome (4856886584).

The spelling of 1245801163 in words is "one billion, two hundred forty-five million, eight hundred one thousand, one hundred sixty-three".