164738452 has 6 divisors (see below), whose sum is σ = 288292298. Its totient is φ = 82369224.

The previous prime is 164738437. The next prime is 164738459. The reversal of 164738452 is 254837461.

164738452 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 164711556 + 26896 = 12834^2 + 164^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164738459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20592303 + ... + 20592310.

Almost surely, 2^164738452 is an apocalyptic number.

It is an amenable number.

164738452 is a deficient number, since it is larger than the sum of its proper divisors (123553846).

164738452 is a wasteful number, since it uses less digits than its factorization.

164738452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41184617 (or 41184615 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The square root of 164738452 is about 12835.0477988981. The cubic root of 164738452 is about 548.1906958828.

Subtracting 164738452 from its reverse (254837461), we obtain a palindrome (90099009).

The spelling of 164738452 in words is "one hundred sixty-four million, seven hundred thirty-eight thousand, four hundred fifty-two".