13135263 has 8 divisors (see below), whose sum is σ = 17674800. Its totient is φ = 8676288.

The previous prime is 13135247. The next prime is 13135279. The reversal of 13135263 is 36253131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13135247) and next prime (13135279).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13135263 - 2⁴ = 13135247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13135163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19758 + ... + 20411.

It is an arithmetic number, because the mean of its divisors is an integer number (2209350).

Almost surely, 2^13135263 is an apocalyptic number.

13135263 is a deficient number, since it is larger than the sum of its proper divisors (4539537).

13135263 is a wasteful number, since it uses less digits than its factorization.

13135263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40281.

The product of its digits is 1620, while the sum is 24.

The square root of 13135263 is about 3624.2603383311. The cubic root of 13135263 is about 235.9461657826.

Adding to 13135263 its reverse (36253131), we get a palindrome (49388394).

The spelling of 13135263 in words is "thirteen million, one hundred thirty-five thousand, two hundred sixty-three".