13122783 has 32 divisors (see below), whose sum is σ = 20275200. Its totient is φ = 8382528.

The previous prime is 13122763. The next prime is 13122817. The reversal of 13122783 is 38722131.

It is not a de Polignac number, because 13122783 - 2⁵ = 13122751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103266 + ... + 103392.

It is an arithmetic number, because the mean of its divisors is an integer number (633600).

Almost surely, 2^13122783 is an apocalyptic number.

13122783 is a deficient number, since it is larger than the sum of its proper divisors (7152417).

13122783 is a wasteful number, since it uses less digits than its factorization.

13122783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 262 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 13122783 is about 3622.5381985564. The cubic root of 13122783 is about 235.8714168361.

It can be divided in two parts, 1312 and 2783, that added together give a triangular number (4095 = T₉₀).

The spelling of 13122783 in words is "thirteen million, one hundred twenty-two thousand, seven hundred eighty-three".