163974743 has 2 divisors, whose sum is σ = 163974744. Its totient is φ = 163974742.

The previous prime is 163974721. The next prime is 163974761. The reversal of 163974743 is 347479361.

163974743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (347479361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163974743 - 2⁸ = 163974487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163974694 and 163974703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163974773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81987371 + 81987372.

It is an arithmetic number, because the mean of its divisors is an integer number (81987372).

Almost surely, 2^163974743 is an apocalyptic number.

163974743 is a deficient number, since it is larger than the sum of its proper divisors (1).

163974743 is an equidigital number, since it uses as much as digits as its factorization.

163974743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 44.

The square root of 163974743 is about 12805.2623167196. The cubic root of 163974743 is about 547.3422665792.

The spelling of 163974743 in words is "one hundred sixty-three million, nine hundred seventy-four thousand, seven hundred forty-three".