2656145 has 4 divisors (see below), whose sum is σ = 3187380. Its totient is φ = 2124912.

The previous prime is 2656141. The next prime is 2656163. The reversal of 2656145 is 5416562.

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 1175056 + 1481089 = 1084^2 + 1217^2 .

It is a cyclic number.

It is not a de Polignac number, because 2656145 - 2² = 2656141 is a prime.

It is a super-2 number, since 2×2656145² = 14110212522050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2656141) 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, 265610 + ... + 265619.

It is an arithmetic number, because the mean of its divisors is an integer number (796845).

2^2656145 is an apocalyptic number.

It is an amenable number.

2656145 is a deficient number, since it is larger than the sum of its proper divisors (531235).

2656145 is an equidigital number, since it uses as much as digits as its factorization.

2656145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531234.

The product of its digits is 7200, while the sum is 29.

The square root of 2656145 is about 1629.7683884528. The cubic root of 2656145 is about 138.4896315662.

The spelling of 2656145 in words is "two million, six hundred fifty-six thousand, one hundred forty-five".