2165749483 has 4 divisors (see below), whose sum is σ = 2259912528. Its totient is φ = 2071586440.

The previous prime is 2165749433. The next prime is 2165749489. The reversal of 2165749483 is 3849475612.

It is a happy number.

2165749483 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2165749483 is a prime.

It is a super-2 number, since 2×2165749483² = 9380941646229534578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2165749489) 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, 47081488 + ... + 47081533.

It is an arithmetic number, because the mean of its divisors is an integer number (564978132).

Almost surely, 2^2165749483 is an apocalyptic number.

2165749483 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2165749483 is a deficient number, since it is larger than the sum of its proper divisors (94163045).

2165749483 is an equidigital number, since it uses as much as digits as its factorization.

2165749483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94163044.

The product of its digits is 1451520, while the sum is 49.

The square root of 2165749483 is about 46537.6136367133. The cubic root of 2165749483 is about 1293.8067317402.

The spelling of 2165749483 in words is "two billion, one hundred sixty-five million, seven hundred forty-nine thousand, four hundred eighty-three".