164434453 has 4 divisors (see below), whose sum is σ = 166031008. Its totient is φ = 162837900.

The previous prime is 164434441. The next prime is 164434483. The reversal of 164434453 is 354434461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 354434461 = 61 ⋅5810401.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164434453 is a prime.

It is a super-3 number, since 3×164434453³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164434423) 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, 798123 + ... + 798328.

It is an arithmetic number, because the mean of its divisors is an integer number (41507752).

Almost surely, 2^164434453 is an apocalyptic number.

It is an amenable number.

164434453 is a deficient number, since it is larger than the sum of its proper divisors (1596555).

164434453 is a wasteful number, since it uses less digits than its factorization.

164434453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596554.

The product of its digits is 69120, while the sum is 34.

The square root of 164434453 is about 12823.1997956828. The cubic root of 164434453 is about 547.8532882425.

The spelling of 164434453 in words is "one hundred sixty-four million, four hundred thirty-four thousand, four hundred fifty-three".