164422531 has 8 divisors (see below), whose sum is σ = 202366304. Its totient is φ = 130092480.

The previous prime is 164422519. The next prime is 164422537. The reversal of 164422531 is 135224461.

164422531 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 a de Polignac number, because none of the positive numbers 2^k-164422531 is a prime.

It is a super-3 number, since 3×164422531³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 164422531.

It is not an unprimeable number, because it can be changed into a prime (164422537) 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, 903330 + ... + 903511.

It is an arithmetic number, because the mean of its divisors is an integer number (25295788).

Almost surely, 2^164422531 is an apocalyptic number.

164422531 is a deficient number, since it is larger than the sum of its proper divisors (37943773).

164422531 is a wasteful number, since it uses less digits than its factorization.

164422531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806861.

The product of its digits is 5760, while the sum is 28.

The square root of 164422531 is about 12822.7349266839. The cubic root of 164422531 is about 547.8400475770.

Adding to 164422531 its reverse (135224461), we get a palindrome (299646992).

The spelling of 164422531 in words is "one hundred sixty-four million, four hundred twenty-two thousand, five hundred thirty-one".