2196261 has 8 divisors (see below), whose sum is σ = 3253760. Its totient is φ = 1464156.

The previous prime is 2196239. The next prime is 2196287. The reversal of 2196261 is 1626912.

It is not a de Polignac number, because 2196261 - 2⁶ = 2196197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 81343 = 2196261 / (2 + 1 + 9 + 6 + 2 + 6 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40645 + ... + 40698.

It is an arithmetic number, because the mean of its divisors is an integer number (406720).

2^2196261 is an apocalyptic number.

It is an amenable number.

2196261 is a deficient number, since it is larger than the sum of its proper divisors (1057499).

2196261 is an equidigital number, since it uses as much as digits as its factorization.

2196261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81352 (or 81346 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 2196261 is about 1481.9787447868. The cubic root of 2196261 is about 129.9854224285.

The spelling of 2196261 in words is "two million, one hundred ninety-six thousand, two hundred sixty-one".