2681465 has 4 divisors (see below), whose sum is σ = 3217764. Its totient is φ = 2145168.

The previous prime is 2681453. The next prime is 2681467. The reversal of 2681465 is 5641862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 619369 + 2062096 = 787^2 + 1436^2 .

It is a cyclic number.

It is not a de Polignac number, because 2681465 - 2¹² = 2677369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2681467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268142 + ... + 268151.

It is an arithmetic number, because the mean of its divisors is an integer number (804441).

2^2681465 is an apocalyptic number.

It is an amenable number.

2681465 is a deficient number, since it is larger than the sum of its proper divisors (536299).

2681465 is an equidigital number, since it uses as much as digits as its factorization.

2681465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536298.

The product of its digits is 11520, while the sum is 32.

The square root of 2681465 is about 1637.5179388330. The cubic root of 2681465 is about 138.9282966102.

The spelling of 2681465 in words is "two million, six hundred eighty-one thousand, four hundred sixty-five".