1245163211 has 2 divisors, whose sum is σ = 1245163212. Its totient is φ = 1245163210.

The previous prime is 1245163193. The next prime is 1245163273. The reversal of 1245163211 is 1123615421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1245163211 - 2²⁶ = 1178054347 is a prime.

It is not a weakly prime, because it can be changed into another prime (1245163411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622581605 + 622581606.

It is an arithmetic number, because the mean of its divisors is an integer number (622581606).

Almost surely, 2^1245163211 is an apocalyptic number.

1245163211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245163211 is an equidigital number, since it uses as much as digits as its factorization.

1245163211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 26.

The square root of 1245163211 is about 35286.8702352589. The cubic root of 1245163211 is about 1075.8261429484.

Adding to 1245163211 its reverse (1123615421), we get a palindrome (2368778632).

The spelling of 1245163211 in words is "one billion, two hundred forty-five million, one hundred sixty-three thousand, two hundred eleven".