1262253313 has 2 divisors, whose sum is σ = 1262253314. Its totient is φ = 1262253312.

The previous prime is 1262253259. The next prime is 1262253323. The reversal of 1262253313 is 3133522621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 741363984 + 520889329 = 27228^2 + 22823^2 .

It is a cyclic number.

It is not a de Polignac number, because 1262253313 - 2⁹ = 1262252801 is a prime.

It is a super-3 number, since 3×1262253313³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1262253323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631126656 + 631126657.

It is an arithmetic number, because the mean of its divisors is an integer number (631126657).

Almost surely, 2^1262253313 is an apocalyptic number.

It is an amenable number.

1262253313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262253313 is an equidigital number, since it uses as much as digits as its factorization.

1262253313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 28.

The square root of 1262253313 is about 35528.2044719403. The cubic root of 1262253313 is about 1080.7257675996.

Adding to 1262253313 its reverse (3133522621), we get a palindrome (4395775934).

The spelling of 1262253313 in words is "one billion, two hundred sixty-two million, two hundred fifty-three thousand, three hundred thirteen".