164220151 has 4 divisors (see below), whose sum is σ = 164349432. Its totient is φ = 164090872.

The previous prime is 164220137. The next prime is 164220157. The reversal of 164220151 is 151022461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164220151 - 2¹⁹ = 163695863 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 (164220157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62716 + ... + 65281.

It is an arithmetic number, because the mean of its divisors is an integer number (41087358).

Almost surely, 2^164220151 is an apocalyptic number.

164220151 is a deficient number, since it is larger than the sum of its proper divisors (129281).

164220151 is a wasteful number, since it uses less digits than its factorization.

164220151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129280.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 164220151 is about 12814.8410446638. The cubic root of 164220151 is about 547.6151850672.

The spelling of 164220151 in words is "one hundred sixty-four million, two hundred twenty thousand, one hundred fifty-one".