2165350634 has 4 divisors (see below), whose sum is σ = 3248025954. Its totient is φ = 1082675316.

The previous prime is 2165350619. The next prime is 2165350661. The reversal of 2165350634 is 4360535612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1179579025 + 985771609 = 34345^2 + 31397^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2165350594 and 2165350603.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541337657 + ... + 541337660.

Almost surely, 2^2165350634 is an apocalyptic number.

2165350634 is a deficient number, since it is larger than the sum of its proper divisors (1082675320).

2165350634 is a wasteful number, since it uses less digits than its factorization.

2165350634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082675319.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 2165350634 is about 46533.3282067810. The cubic root of 2165350634 is about 1293.7273034705.

The spelling of 2165350634 in words is "two billion, one hundred sixty-five million, three hundred fifty thousand, six hundred thirty-four".