2149893 has 6 divisors (see below), whose sum is σ = 3105414. Its totient is φ = 1433256.

The previous prime is 2149883. The next prime is 2149897. The reversal of 2149893 is 3989412.

It can be written as a sum of positive squares in only one way, i.e., 1855044 + 294849 = 1362^2 + 543^2 .

It is not a de Polignac number, because 2149893 - 2⁴ = 2149877 is a prime.

It is a super-2 number, since 2×2149893² = 9244079822898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149897) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119430 + ... + 119447.

It is an arithmetic number, because the mean of its divisors is an integer number (517569).

2^2149893 is an apocalyptic number.

It is an amenable number.

2149893 is a deficient number, since it is larger than the sum of its proper divisors (955521).

2149893 is a wasteful number, since it uses less digits than its factorization.

2149893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238883 (or 238880 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 2149893 is about 1466.2513427104. The cubic root of 2149893 is about 129.0641469322.

The spelling of 2149893 in words is "two million, one hundred forty-nine thousand, eight hundred ninety-three".