2273149 has 4 divisors (see below), whose sum is σ = 2298780. Its totient is φ = 2247520.

The previous prime is 2273143. The next prime is 2273153. The reversal of 2273149 is 9413722.

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

It can be written as a sum of positive squares in 2 ways, for example, as 710649 + 1562500 = 843^2 + 1250^2 .

It is a cyclic number.

It is not a de Polignac number, because 2273149 - 2¹³ = 2264957 is a prime.

It is a Duffinian number.

2273149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2273143) 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, 12682 + ... + 12859.

It is an arithmetic number, because the mean of its divisors is an integer number (574695).

2^2273149 is an apocalyptic number.

It is an amenable number.

2273149 is a deficient number, since it is larger than the sum of its proper divisors (25631).

2273149 is an equidigital number, since it uses as much as digits as its factorization.

2273149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25630.

The product of its digits is 3024, while the sum is 28.

The square root of 2273149 is about 1507.6965875135. The cubic root of 2273149 is about 131.4849264915.

The spelling of 2273149 in words is "two million, two hundred seventy-three thousand, one hundred forty-nine".