164308157 has 8 divisors (see below), whose sum is σ = 181730136. Its totient is φ = 147569472.

The previous prime is 164308141. The next prime is 164308163. The reversal of 164308157 is 751803461.

It can be written as a sum of positive squares in 4 ways, for example, as 27394756 + 136913401 = 5234^2 + 11701^2 .

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 164308157 - 2⁴ = 164308141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164308457) 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, 170318 + ... + 171279.

It is an arithmetic number, because the mean of its divisors is an integer number (22716267).

Almost surely, 2^164308157 is an apocalyptic number.

It is an amenable number.

164308157 is a deficient number, since it is larger than the sum of its proper divisors (17421979).

164308157 is a wasteful number, since it uses less digits than its factorization.

164308157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341647.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 164308157 is about 12818.2743378350. The cubic root of 164308157 is about 547.7129903919.

The spelling of 164308157 in words is "one hundred sixty-four million, three hundred eight thousand, one hundred fifty-seven".