2684056145 has 4 divisors (see below), whose sum is σ = 3220867380. Its totient is φ = 2147244912.

The previous prime is 2684056127. The next prime is 2684056301. The reversal of 2684056145 is 5416504862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5416504862 = 2 ⋅2708252431.

It can be written as a sum of positive squares in 2 ways, for example, as 1151177041 + 1532879104 = 33929^2 + 39152^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2684056145 is a prime.

It is a super-2 number, since 2×2684056145² = 14408314779024522050, which contains 22 as substring.

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, 268405610 + ... + 268405619.

It is an arithmetic number, because the mean of its divisors is an integer number (805216845).

Almost surely, 2^2684056145 is an apocalyptic number.

It is an amenable number.

2684056145 is a deficient number, since it is larger than the sum of its proper divisors (536811235).

2684056145 is an equidigital number, since it uses as much as digits as its factorization.

2684056145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536811234.

The product of its (nonzero) digits is 230400, while the sum is 41.

The square root of 2684056145 is about 51807.8772485420. The cubic root of 2684056145 is about 1389.7303179170.

The spelling of 2684056145 in words is "two billion, six hundred eighty-four million, fifty-six thousand, one hundred forty-five".