164142679 has 2 divisors, whose sum is σ = 164142680. Its totient is φ = 164142678.

The previous prime is 164142677. The next prime is 164142683. The reversal of 164142679 is 976241461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164142679 - 2¹ = 164142677 is a prime.

Together with 164142677, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164142677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82071339 + 82071340.

It is an arithmetic number, because the mean of its divisors is an integer number (82071340).

Almost surely, 2^164142679 is an apocalyptic number.

164142679 is a deficient number, since it is larger than the sum of its proper divisors (1).

164142679 is an equidigital number, since it uses as much as digits as its factorization.

164142679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 40.

The square root of 164142679 is about 12811.8179428214. The cubic root of 164142679 is about 547.5290577629.

The spelling of 164142679 in words is "one hundred sixty-four million, one hundred forty-two thousand, six hundred seventy-nine".