164630247 has 8 divisors (see below), whose sum is σ = 219690240. Its totient is φ = 109661880.

The previous prime is 164630239. The next prime is 164630267. The reversal of 164630247 is 742036461.

It is a happy number.

164630247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164630247 - 2³ = 164630239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164630267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18597 + ... + 25982.

It is an arithmetic number, because the mean of its divisors is an integer number (27461280).

Almost surely, 2^164630247 is an apocalyptic number.

164630247 is a deficient number, since it is larger than the sum of its proper divisors (55059993).

164630247 is a wasteful number, since it uses less digits than its factorization.

164630247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45813.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 164630247 is about 12830.8318904115. The cubic root of 164630247 is about 548.0706470714.

The spelling of 164630247 in words is "one hundred sixty-four million, six hundred thirty thousand, two hundred forty-seven".