164831215 has 8 divisors (see below), whose sum is σ = 204618240. Its totient is φ = 127317792.

The previous prime is 164831207. The next prime is 164831231. The reversal of 164831215 is 512138461.

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

It is a cyclic number.

It is not a de Polignac number, because 164831215 - 2³ = 164831207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568239 + ... + 568528.

It is an arithmetic number, because the mean of its divisors is an integer number (25577280).

Almost surely, 2^164831215 is an apocalyptic number.

164831215 is a deficient number, since it is larger than the sum of its proper divisors (39787025).

164831215 is a wasteful number, since it uses less digits than its factorization.

164831215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136801.

The product of its digits is 5760, while the sum is 31.

The square root of 164831215 is about 12838.6609504263. The cubic root of 164831215 is about 548.2935706137.

Adding to 164831215 its reverse (512138461), we get a palindrome (676969676).

The spelling of 164831215 in words is "one hundred sixty-four million, eight hundred thirty-one thousand, two hundred fifteen".