2680145 has 8 divisors (see below), whose sum is σ = 3463656. Its totient is φ = 1979136.

The previous prime is 2680141. The next prime is 2680231. The reversal of 2680145 is 5410862.

It can be written as a sum of positive squares in 4 ways, for example, as 13456 + 2666689 = 116^2 + 1633^2 .

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 2680145 - 2² = 2680141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680141) 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, 20552 + ... + 20681.

It is an arithmetic number, because the mean of its divisors is an integer number (432957).

2^2680145 is an apocalyptic number.

It is an amenable number.

2680145 is a deficient number, since it is larger than the sum of its proper divisors (783511).

2680145 is a wasteful number, since it uses less digits than its factorization.

2680145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41251.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2680145 is about 1637.1148401991. The cubic root of 2680145 is about 138.9054962067.

The spelling of 2680145 in words is "two million, six hundred eighty thousand, one hundred forty-five".