2255138 has 8 divisors (see below), whose sum is σ = 3394332. Its totient is φ = 1123696.

The previous prime is 2255131. The next prime is 2255147. The reversal of 2255138 is 8315522.

It can be written as a sum of positive squares in 2 ways, for example, as 1760929 + 494209 = 1327^2 + 703^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2255131) 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, 1145 + ... + 2412.

2^2255138 is an apocalyptic number.

2255138 is a deficient number, since it is larger than the sum of its proper divisors (1139194).

2255138 is a wasteful number, since it uses less digits than its factorization.

2255138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3876.

The product of its digits is 2400, while the sum is 26.

The square root of 2255138 is about 1501.7116900391. The cubic root of 2255138 is about 131.1367373595.

The spelling of 2255138 in words is "two million, two hundred fifty-five thousand, one hundred thirty-eight".