1235117263 has 2 divisors, whose sum is σ = 1235117264. Its totient is φ = 1235117262.

The previous prime is 1235117231. The next prime is 1235117311. The reversal of 1235117263 is 3627115321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1235117263 - 2⁵ = 1235117231 is a prime.

It is a super-2 number, since 2×1235117263² = 3051029306721222338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1235118263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617558631 + 617558632.

It is an arithmetic number, because the mean of its divisors is an integer number (617558632).

Almost surely, 2^1235117263 is an apocalyptic number.

1235117263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235117263 is an equidigital number, since it uses as much as digits as its factorization.

1235117263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 31.

The square root of 1235117263 is about 35144.2351318107. The cubic root of 1235117263 is about 1072.9250801848.

The spelling of 1235117263 in words is "one billion, two hundred thirty-five million, one hundred seventeen thousand, two hundred sixty-three".