2231149 has 2 divisors, whose sum is σ = 2231150. Its totient is φ = 2231148.

The previous prime is 2231129. The next prime is 2231171. The reversal of 2231149 is 9411322.

It is an a-pointer prime, because the next prime (2231171) can be obtained adding 2231149 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1988100 + 243049 = 1410^2 + 493^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2231149 is a prime.

It is a super-3 number, since 3×2231149³ = 33320152259884802847, which contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115574 + 1115575.

It is an arithmetic number, because the mean of its divisors is an integer number (1115575).

2^2231149 is an apocalyptic number.

It is an amenable number.

2231149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231149 is an equidigital number, since it uses as much as digits as its factorization.

2231149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

The square root of 2231149 is about 1493.7031164191. The cubic root of 2231149 is about 130.6700903529.

The spelling of 2231149 in words is "two million, two hundred thirty-one thousand, one hundred forty-nine".