2272321 has 2 divisors, whose sum is σ = 2272322. Its totient is φ = 2272320.

The previous prime is 2272313. The next prime is 2272337. The reversal of 2272321 is 1232722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1199025 + 1073296 = 1095^2 + 1036^2 .

It is a cyclic number.

It is not a de Polignac number, because 2272321 - 2³ = 2272313 is a prime.

2272321 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2272301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136160 + 1136161.

It is an arithmetic number, because the mean of its divisors is an integer number (1136161).

2^2272321 is an apocalyptic number.

It is an amenable number.

2272321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2272321 is an equidigital number, since it uses as much as digits as its factorization.

2272321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 19.

The square root of 2272321 is about 1507.4219714466. The cubic root of 2272321 is about 131.4689599857.

The spelling of 2272321 in words is "two million, two hundred seventy-two thousand, three hundred twenty-one".