2590138 has 4 divisors (see below), whose sum is σ = 3885210. Its totient is φ = 1295068.

The previous prime is 2590129. The next prime is 2590139. The reversal of 2590138 is 8310952.

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

It can be written as a sum of positive squares in only one way, i.e., 1306449 + 1283689 = 1143^2 + 1133^2 .

It is not an unprimeable number, because it can be changed into a prime (2590139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647533 + ... + 647536.

2^2590138 is an apocalyptic number.

2590138 is a deficient number, since it is larger than the sum of its proper divisors (1295072).

2590138 is a wasteful number, since it uses less digits than its factorization.

2590138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295071.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2590138 is about 1609.3905678859. The cubic root of 2590138 is about 137.3328083578.

The spelling of 2590138 in words is "two million, five hundred ninety thousand, one hundred thirty-eight".