164201947 has 16 divisors (see below), whose sum is σ = 208617472. Its totient is φ = 125724960.

The previous prime is 164201927. The next prime is 164201981. The reversal of 164201947 is 749102461.

It is a cyclic number.

It is not a de Polignac number, because 164201947 - 2¹⁵ = 164169179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164201927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26283 + ... + 31924.

It is an arithmetic number, because the mean of its divisors is an integer number (13038592).

Almost surely, 2^164201947 is an apocalyptic number.

164201947 is a deficient number, since it is larger than the sum of its proper divisors (44415525).

164201947 is a wasteful number, since it uses less digits than its factorization.

164201947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58258.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 164201947 is about 12814.1307547566. The cubic root of 164201947 is about 547.5949497203.

The spelling of 164201947 in words is "one hundred sixty-four million, two hundred one thousand, nine hundred forty-seven".