164425743 has 24 divisors (see below), whose sum is σ = 248086800. Its totient is φ = 104834304.

The previous prime is 164425721. The next prime is 164425747. The reversal of 164425743 is 347524461.

164425743 is a `hidden beast` number, since 1 + 644 + 2 + 5 + 7 + 4 + 3 = 666.

164425743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164425743 - 2¹³ = 164417551 is a prime.

It is a super-3 number, since 3×164425743³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 164425698 and 164425707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164425747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15463 + ... + 23831.

It is an arithmetic number, because the mean of its divisors is an integer number (10336950).

Almost surely, 2^164425743 is an apocalyptic number.

164425743 is a deficient number, since it is larger than the sum of its proper divisors (83661057).

164425743 is a wasteful number, since it uses less digits than its factorization.

164425743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8471 (or 8468 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 164425743 is about 12822.8601723640. The cubic root of 164425743 is about 547.8436149121.

The spelling of 164425743 in words is "one hundred sixty-four million, four hundred twenty-five thousand, seven hundred forty-three".