164624453 has 4 divisors (see below), whose sum is σ = 188142240. Its totient is φ = 141106668.

The previous prime is 164624443. The next prime is 164624459. The reversal of 164624453 is 354426461.

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.

It is a cyclic number.

It is not a de Polignac number, because 164624453 - 2⁴ = 164624437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164624459) 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, 11758883 + ... + 11758896.

It is an arithmetic number, because the mean of its divisors is an integer number (47035560).

Almost surely, 2^164624453 is an apocalyptic number.

It is an amenable number.

164624453 is a deficient number, since it is larger than the sum of its proper divisors (23517787).

164624453 is an equidigital number, since it uses as much as digits as its factorization.

164624453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23517786.

The product of its digits is 69120, while the sum is 35.

The square root of 164624453 is about 12830.6061041558. The cubic root of 164624453 is about 548.0642173931.

The spelling of 164624453 in words is "one hundred sixty-four million, six hundred twenty-four thousand, four hundred fifty-three".