2945149 has 2 divisors, whose sum is σ = 2945150. Its totient is φ = 2945148.

The previous prime is 2945147. The next prime is 2945167. The reversal of 2945149 is 9415492.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2464900 + 480249 = 1570^2 + 693^2 .

It is a cyclic number.

It is not a de Polignac number, because 2945149 - 2¹ = 2945147 is a prime.

Together with 2945147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2945147) 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 as a sum of consecutive naturals, namely, 1472574 + 1472575.

It is an arithmetic number, because the mean of its divisors is an integer number (1472575).

2^2945149 is an apocalyptic number.

It is an amenable number.

2945149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2945149 is an equidigital number, since it uses as much as digits as its factorization.

2945149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 2945149 is about 1716.1436420067. The cubic root of 2945149 is about 143.3405578956.

The spelling of 2945149 in words is "two million, nine hundred forty-five thousand, one hundred forty-nine".