2765442145 has 16 divisors (see below), whose sum is σ = 3490099200. Its totient is φ = 2099490624.

The previous prime is 2765442083. The next prime is 2765442193. The reversal of 2765442145 is 5412445672.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2765442145 - 2¹⁵ = 2765409377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2765442098 and 2765442107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80070 + ... + 109279.

It is an arithmetic number, because the mean of its divisors is an integer number (218131200).

Almost surely, 2^2765442145 is an apocalyptic number.

It is an amenable number.

2765442145 is a deficient number, since it is larger than the sum of its proper divisors (724657055).

2765442145 is a wasteful number, since it uses less digits than its factorization.

2765442145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189504.

The product of its digits is 268800, while the sum is 40.

The square root of 2765442145 is about 52587.4713691389. The cubic root of 2765442145 is about 1403.6371658482.

The spelling of 2765442145 in words is "two billion, seven hundred sixty-five million, four hundred forty-two thousand, one hundred forty-five".