2195761 has 8 divisors (see below), whose sum is σ = 2284544. Its totient is φ = 2108160.

The previous prime is 2195759. The next prime is 2195777. The reversal of 2195761 is 1675912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2195761 - 2¹ = 2195759 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

2195761 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2195701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5800 + ... + 6166.

It is an arithmetic number, because the mean of its divisors is an integer number (285568).

2^2195761 is an apocalyptic number.

It is an amenable number.

2195761 is a deficient number, since it is larger than the sum of its proper divisors (88783).

2195761 is a wasteful number, since it uses less digits than its factorization.

2195761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591.

The product of its digits is 3780, while the sum is 31.

The square root of 2195761 is about 1481.8100418070. The cubic root of 2195761 is about 129.9755575348.

The spelling of 2195761 in words is "two million, one hundred ninety-five thousand, seven hundred sixty-one".