2149197 has 4 divisors (see below), whose sum is σ = 2865600. Its totient is φ = 1432796.

The previous prime is 2149187. The next prime is 2149207. The reversal of 2149197 is 7919412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2149187) and next prime (2149207).

It is a cyclic number.

It is not a de Polignac number, because 2149197 - 2⁴ = 2149181 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149117) 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, 358197 + ... + 358202.

It is an arithmetic number, because the mean of its divisors is an integer number (716400).

2^2149197 is an apocalyptic number.

It is an amenable number.

2149197 is a deficient number, since it is larger than the sum of its proper divisors (716403).

2149197 is an equidigital number, since it uses as much as digits as its factorization.

2149197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716402.

The product of its digits is 4536, while the sum is 33.

The square root of 2149197 is about 1466.0139835622. The cubic root of 2149197 is about 129.0502178139.

It can be divided in two parts, 2149 and 197, that added together give a triangular number (2346 = T₆₈).

The spelling of 2149197 in words is "two million, one hundred forty-nine thousand, one hundred ninety-seven".