2253861 has 12 divisors (see below), whose sum is σ = 3273088. Its totient is φ = 1494504.

The previous prime is 2253857. The next prime is 2253863. The reversal of 2253861 is 1683522.

It is not a de Polignac number, because 2253861 - 2² = 2253857 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 (2253863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1446 + ... + 2568.

2^2253861 is an apocalyptic number.

It is an amenable number.

2253861 is a deficient number, since it is larger than the sum of its proper divisors (1019227).

2253861 is a wasteful number, since it uses less digits than its factorization.

2253861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352 (or 1349 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2253861 is about 1501.2864483502. The cubic root of 2253861 is about 131.1119800819. Note that the first 3 decimals are identical.

The spelling of 2253861 in words is "two million, two hundred fifty-three thousand, eight hundred sixty-one".