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164145131151 = 31917340940699
BaseRepresentation
bin1001100011011111001…
…1111110111010001111
3120200200120000121221220
42120313303332322033
510142132123144101
6203223543454423
714600445410451
oct2306763767217
9520616017856
10164145131151
1163682713591
122798ba57413
131262bc74051
147d322462d1
15440a82e636
hex2637cfee8f

164145131151 has 32 divisors (see below), whose sum is σ = 232283040000. Its totient is φ = 102816822528.

The previous prime is 164145131123. The next prime is 164145131197. The reversal of 164145131151 is 151131541461.

It is a happy number.

It is not a de Polignac number, because 164145131151 - 214 = 164145114767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164145131851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4012800 + ... + 4053498.

It is an arithmetic number, because the mean of its divisors is an integer number (7258845000).

Almost surely, 2164145131151 is an apocalyptic number.

164145131151 is a deficient number, since it is larger than the sum of its proper divisors (68137908849).

164145131151 is a wasteful number, since it uses less digits than its factorization.

164145131151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41303.

The product of its digits is 7200, while the sum is 33.

It can be divided in two parts, 164145 and 131151, that added together give a triangular number (295296 = T768).

The spelling of 164145131151 in words is "one hundred sixty-four billion, one hundred forty-five million, one hundred thirty-one thousand, one hundred fifty-one".

Divisors: 1 3 19 57 173 409 519 1227 3287 7771 9861 23313 40699 70757 122097 212271 773281 1344383 2319843 4033149 7040927 16645891 21122781 49937673 133777613 316271929 401332839 948815787 2879739143 8639217429 54715043717 164145131151