2606138 has 4 divisors (see below), whose sum is σ = 3909210. Its totient is φ = 1303068.

The previous prime is 2606129. The next prime is 2606161. The reversal of 2606138 is 8316062.

2606138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8316062 = 2 ⋅4158031.

It can be written as a sum of positive squares in only one way, i.e., 2289169 + 316969 = 1513^2 + 563^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651533 + ... + 651536.

2^2606138 is an apocalyptic number.

2606138 is a deficient number, since it is larger than the sum of its proper divisors (1303072).

2606138 is a wasteful number, since it uses less digits than its factorization.

2606138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303071.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2606138 is about 1614.3537406653. The cubic root of 2606138 is about 137.6150090104.

It can be divided in two parts, 2606 and 138, that added together give a cube (2744 = 14³).

The spelling of 2606138 in words is "two million, six hundred six thousand, one hundred thirty-eight".