2049961 has 2 divisors, whose sum is σ = 2049962. Its totient is φ = 2049960.

The previous prime is 2049953. The next prime is 2049973. The reversal of 2049961 is 1699402.

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., 1440000 + 609961 = 1200^2 + 781^2 .

It is a cyclic number.

It is not a de Polignac number, because 2049961 - 2³ = 2049953 is a prime.

It is not a weakly prime, because it can be changed into another prime (2049941) 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, 1024980 + 1024981.

It is an arithmetic number, because the mean of its divisors is an integer number (1024981).

2^2049961 is an apocalyptic number.

It is an amenable number.

2049961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2049961 is an equidigital number, since it uses as much as digits as its factorization.

2049961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2049961 is about 1431.7684868721. The cubic root of 2049961 is about 127.0326036944.

The spelling of 2049961 in words is "two million, forty-nine thousand, nine hundred sixty-one".