1270085263 has 4 divisors (see below), whose sum is σ = 1273854400. Its totient is φ = 1266316128.

The previous prime is 1270085237. The next prime is 1270085293. The reversal of 1270085263 is 3625800721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3625800721 = 43 ⋅84320947.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1270085263 is a prime.

It is a super-2 number, since 2×1270085263² = 3226233150579558338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270085213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1884063 + ... + 1884736.

It is an arithmetic number, because the mean of its divisors is an integer number (318463600).

Almost surely, 2^1270085263 is an apocalyptic number.

1270085263 is a deficient number, since it is larger than the sum of its proper divisors (3769137).

1270085263 is an equidigital number, since it uses as much as digits as its factorization.

1270085263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3769136.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1270085263 is about 35638.2556110705. The cubic root of 1270085263 is about 1082.9563669465.

Adding to 1270085263 its reverse (3625800721), we get a palindrome (4895885984).

The spelling of 1270085263 in words is "one billion, two hundred seventy million, eighty-five thousand, two hundred sixty-three".