2149061 has 2 divisors, whose sum is σ = 2149062. Its totient is φ = 2149060.

The previous prime is 2149057. The next prime is 2149067. The reversal of 2149061 is 1609412.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1976836 + 172225 = 1406^2 + 415^2 .

It is a cyclic number.

It is not a de Polignac number, because 2149061 - 2² = 2149057 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2149067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074530 + 1074531.

It is an arithmetic number, because the mean of its divisors is an integer number (1074531).

2^2149061 is an apocalyptic number.

It is an amenable number.

2149061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149061 is an equidigital number, since it uses as much as digits as its factorization.

2149061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2149061 is about 1465.9675985505. The cubic root of 2149061 is about 129.0474956810.

The spelling of 2149061 in words is "two million, one hundred forty-nine thousand, sixty-one".