164254633 has 4 divisors (see below), whose sum is σ = 164558788. Its totient is φ = 163950480.

The previous prime is 164254631. The next prime is 164254669. The reversal of 164254633 is 336452461.

164254633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 55532304 + 108722329 = 7452^2 + 10427^2 .

It is a cyclic number.

It is not a de Polignac number, because 164254633 - 2¹ = 164254631 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164254631) 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, 151266 + ... + 152347.

It is an arithmetic number, because the mean of its divisors is an integer number (41139697).

Almost surely, 2^164254633 is an apocalyptic number.

It is an amenable number.

164254633 is a deficient number, since it is larger than the sum of its proper divisors (304155).

164254633 is an equidigital number, since it uses as much as digits as its factorization.

164254633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304154.

The product of its digits is 51840, while the sum is 34.

The square root of 164254633 is about 12816.1863672467. The cubic root of 164254633 is about 547.6535107441.

The spelling of 164254633 in words is "one hundred sixty-four million, two hundred fifty-four thousand, six hundred thirty-three".