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164559157 = 7173135887
BaseRepresentation
bin10011100111011…
…11100100110101
3102110122110201121
421303233210311
5314111343112
624155023541
74035505210
oct1163574465
9373573647
10164559157
1184986804
124713abb1
13281289a9
1417bd8777
15e6a8407
hex9cef935

164559157 has 8 divisors (see below), whose sum is σ = 189156096. Its totient is φ = 140234352.

The previous prime is 164559149. The next prime is 164559163. The reversal of 164559157 is 751955461.

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 164559157 - 23 = 164559149 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 (164559127) 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 7 ways as a sum of consecutive naturals, for example, 66733 + ... + 69154.

It is an arithmetic number, because the mean of its divisors is an integer number (23644512).

Almost surely, 2164559157 is an apocalyptic number.

It is an amenable number.

164559157 is a deficient number, since it is larger than the sum of its proper divisors (24596939).

164559157 is a wasteful number, since it uses less digits than its factorization.

164559157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136067.

The product of its digits is 189000, while the sum is 43.

The square root of 164559157 is about 12828.0613110477. The cubic root of 164559157 is about 547.9917471274.

The spelling of 164559157 in words is "one hundred sixty-four million, five hundred fifty-nine thousand, one hundred fifty-seven".

Divisors: 1 7 173 1211 135887 951209 23508451 164559157