2149387 has 4 divisors (see below), whose sum is σ = 2153536. Its totient is φ = 2145240.

The previous prime is 2149379. The next prime is 2149391. The reversal of 2149387 is 7839412.

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

It is a cyclic number.

It is not a de Polignac number, because 2149387 - 2³ = 2149379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2149087) 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, 1164 + ... + 2377.

It is an arithmetic number, because the mean of its divisors is an integer number (538384).

2^2149387 is an apocalyptic number.

2149387 is a deficient number, since it is larger than the sum of its proper divisors (4149).

2149387 is an equidigital number, since it uses as much as digits as its factorization.

2149387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4148.

The product of its digits is 12096, while the sum is 34.

The square root of 2149387 is about 1466.0787836948. The cubic root of 2149387 is about 129.0540206015.

The spelling of 2149387 in words is "two million, one hundred forty-nine thousand, three hundred eighty-seven".