2897149 has 4 divisors (see below), whose sum is σ = 3023136. Its totient is φ = 2771164.

The previous prime is 2897131. The next prime is 2897171. The reversal of 2897149 is 9417982.

2897149 = T₁₃₂ + T₁₃₃ + ... + T₂₆₉.

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 a cyclic number.

It is not a de Polignac number, because 2897149 - 2⁹ = 2896637 is a prime.

It is a Duffinian number.

2897149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62959 + ... + 63004.

It is an arithmetic number, because the mean of its divisors is an integer number (755784).

2^2897149 is an apocalyptic number.

It is an amenable number.

2897149 is a deficient number, since it is larger than the sum of its proper divisors (125987).

2897149 is a wasteful number, since it uses less digits than its factorization.

2897149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125986.

The product of its digits is 36288, while the sum is 40.

The square root of 2897149 is about 1702.1013483339. The cubic root of 2897149 is about 142.5575677940.

The spelling of 2897149 in words is "two million, eight hundred ninety-seven thousand, one hundred forty-nine".