3211265 has 4 divisors (see below), whose sum is σ = 3853524. Its totient is φ = 2569008.

The previous prime is 3211213. The next prime is 3211279. The reversal of 3211265 is 5621123.

It is a Cunningham number, because it is equal to 1792²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5621123 = 397 ⋅14159.

It can be written as a sum of positive squares in 2 ways, for example, as 1157776 + 2053489 = 1076^2 + 1433^2 .

It is a cyclic number.

It is not a de Polignac number, because 3211265 - 2⁸ = 3211009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321122 + ... + 321131.

It is an arithmetic number, because the mean of its divisors is an integer number (963381).

It is a Proth number, since it is equal to 49 ⋅ 2¹⁶ + 1 and 49 < 2¹⁶.

Almost surely, 2^3211265 is an apocalyptic number.

It is an amenable number.

3211265 is a deficient number, since it is larger than the sum of its proper divisors (642259).

3211265 is an equidigital number, since it uses as much as digits as its factorization.

3211265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642258.

The product of its digits is 360, while the sum is 20.

The square root of 3211265 is about 1792.0002790178. Note that the first 3 decimals coincide. The cubic root of 3211265 is about 147.5339766601.

Adding to 3211265 its reverse (5621123), we get a palindrome (8832388).

The spelling of 3211265 in words is "three million, two hundred eleven thousand, two hundred sixty-five".