164334451 has 4 divisors (see below), whose sum is σ = 166787272. Its totient is φ = 161881632.

The previous prime is 164334413. The next prime is 164334479. The reversal of 164334451 is 154433461.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164334451 - 2¹³ = 164326259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164334551) 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, 1226310 + ... + 1226443.

It is an arithmetic number, because the mean of its divisors is an integer number (41696818).

Almost surely, 2^164334451 is an apocalyptic number.

164334451 is a deficient number, since it is larger than the sum of its proper divisors (2452821).

164334451 is an equidigital number, since it uses as much as digits as its factorization.

164334451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452820.

The product of its digits is 17280, while the sum is 31.

The square root of 164334451 is about 12819.2999418845. The cubic root of 164334451 is about 547.7422054097.

The spelling of 164334451 in words is "one hundred sixty-four million, three hundred thirty-four thousand, four hundred fifty-one".