164782743 has 4 divisors (see below), whose sum is σ = 219710328. Its totient is φ = 109855160.

The previous prime is 164782721. The next prime is 164782747. The reversal of 164782743 is 347287461.

164782743 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, and also an emirpimes, since its reverse is a distinct semiprime: 347287461 = 3 ⋅115762487.

It is a cyclic number.

It is not a de Polignac number, because 164782743 - 2⁶ = 164782679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164782695 and 164782704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164782747) 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, 27463788 + ... + 27463793.

It is an arithmetic number, because the mean of its divisors is an integer number (54927582).

Almost surely, 2^164782743 is an apocalyptic number.

164782743 is a deficient number, since it is larger than the sum of its proper divisors (54927585).

164782743 is an equidigital number, since it uses as much as digits as its factorization.

164782743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54927584.

The product of its digits is 225792, while the sum is 42.

The square root of 164782743 is about 12836.7730758162. The cubic root of 164782743 is about 548.2398196872.

It can be divided in two parts, 16478 and 2743, that multiplied together give a palindrome (45199154).

The spelling of 164782743 in words is "one hundred sixty-four million, seven hundred eighty-two thousand, seven hundred forty-three".