2190541 has 2 divisors, whose sum is σ = 2190542. Its totient is φ = 2190540.

The previous prime is 2190533. The next prime is 2190577. The reversal of 2190541 is 1450912.

2190541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1232100 + 958441 = 1110^2 + 979^2 .

It is a cyclic number.

It is not a de Polignac number, because 2190541 - 2³ = 2190533 is a prime.

2190541 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2190521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095270 + 1095271.

It is an arithmetic number, because the mean of its divisors is an integer number (1095271).

2^2190541 is an apocalyptic number.

It is an amenable number.

2190541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190541 is an equidigital number, since it uses as much as digits as its factorization.

2190541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 2190541 is about 1480.0476343686. The cubic root of 2190541 is about 129.8724785009.

The spelling of 2190541 in words is "two million, one hundred ninety thousand, five hundred forty-one".