164454452 has 6 divisors (see below), whose sum is σ = 287795298. Its totient is φ = 82227224.

The previous prime is 164454421. The next prime is 164454461. The reversal of 164454452 is 254454461.

It can be written as a sum of positive squares in only one way, i.e., 132802576 + 31651876 = 11524^2 + 5626^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20556803 + ... + 20556810.

It is an arithmetic number, because the mean of its divisors is an integer number (47965883).

Almost surely, 2^164454452 is an apocalyptic number.

It is an amenable number.

164454452 is a deficient number, since it is larger than the sum of its proper divisors (123340846).

164454452 is a wasteful number, since it uses less digits than its factorization.

164454452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41113617 (or 41113615 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

The square root of 164454452 is about 12823.9795695408. The cubic root of 164454452 is about 547.8754978496.

Subtracting 164454452 from its reverse (254454461), we obtain a palindrome (90000009).

The spelling of 164454452 in words is "one hundred sixty-four million, four hundred fifty-four thousand, four hundred fifty-two".