3138263 has 4 divisors (see below), whose sum is σ = 3214848. Its totient is φ = 3061680.

The previous prime is 3138221. The next prime is 3138283. The reversal of 3138263 is 3628313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3138263 - 2¹⁸ = 2876119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138283) 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, 38231 + ... + 38312.

It is an arithmetic number, because the mean of its divisors is an integer number (803712).

Almost surely, 2^3138263 is an apocalyptic number.

3138263 is a deficient number, since it is larger than the sum of its proper divisors (76585).

3138263 is an equidigital number, since it uses as much as digits as its factorization.

3138263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76584.

The product of its digits is 2592, while the sum is 26.

The square root of 3138263 is about 1771.5143239613. The cubic root of 3138263 is about 146.4074283061.

It can be divided in two parts, 31382 and 63, that multiplied together give a triangular number (1977066 = T₁₉₈₈).

The spelling of 3138263 in words is "three million, one hundred thirty-eight thousand, two hundred sixty-three".