2138263 has 2 divisors, whose sum is σ = 2138264. Its totient is φ = 2138262.

The previous prime is 2138251. The next prime is 2138291. The reversal of 2138263 is 3628312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2138263 - 2⁵ = 2138231 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 1 + 3³ + 8³ + 2²¹ + 6⁵ + 3³ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2138363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1069131 + 1069132.

It is an arithmetic number, because the mean of its divisors is an integer number (1069132).

2^2138263 is an apocalyptic number.

2138263 is a deficient number, since it is larger than the sum of its proper divisors (1).

2138263 is an equidigital number, since it uses as much as digits as its factorization.

2138263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 2138263 is about 1462.2800689334. The cubic root of 2138263 is about 128.8309987693.

It can be divided in two parts, 2138 and 263, that added together give a 4-th power (2401 = 7⁴).

The spelling of 2138263 in words is "two million, one hundred thirty-eight thousand, two hundred sixty-three".