164319517 has 2 divisors, whose sum is σ = 164319518. Its totient is φ = 164319516.

The previous prime is 164319511. The next prime is 164319523. The reversal of 164319517 is 715913461.

It is a happy number.

164319517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (164319511) and next prime (164319523).

It can be written as a sum of positive squares in only one way, i.e., 88472836 + 75846681 = 9406^2 + 8709^2 .

It is an emirp because it is prime and its reverse (715913461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164319517 - 2³ = 164319509 is a prime.

It is a super-2 number, since 2×164319517² = 54001807334226578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164319511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82159758 + 82159759.

It is an arithmetic number, because the mean of its divisors is an integer number (82159759).

Almost surely, 2^164319517 is an apocalyptic number.

It is an amenable number.

164319517 is a deficient number, since it is larger than the sum of its proper divisors (1).

164319517 is an equidigital number, since it uses as much as digits as its factorization.

164319517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 37.

The square root of 164319517 is about 12818.7174475452. The cubic root of 164319517 is about 547.7256127642.

It can be divided in two parts, 164319 and 517, that added together give a square (164836 = 406²).

The spelling of 164319517 in words is "one hundred sixty-four million, three hundred nineteen thousand, five hundred seventeen".