2145565367 has 32 divisors (see below), whose sum is σ = 2536216320. Its totient is φ = 1794078720.

The previous prime is 2145565343. The next prime is 2145565423. The reversal of 2145565367 is 7635655412.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2145565367 - 2¹⁶ = 2145499831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145565307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1733873 + ... + 1735109.

It is an arithmetic number, because the mean of its divisors is an integer number (79256760).

Almost surely, 2^2145565367 is an apocalyptic number.

2145565367 is a deficient number, since it is larger than the sum of its proper divisors (390650953).

2145565367 is a wasteful number, since it uses less digits than its factorization.

2145565367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503.

The product of its digits is 756000, while the sum is 44.

The square root of 2145565367 is about 46320.2479160032. The cubic root of 2145565367 is about 1289.7748875061.

The spelling of 2145565367 in words is "two billion, one hundred forty-five million, five hundred sixty-five thousand, three hundred sixty-seven".