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126132161 = 2347116681
BaseRepresentation
bin1111000010010…
…01111111000001
322210100011210112
413201021333001
5224242212121
620303241105
73061051151
oct741117701
9283304715
10126132161
116521aa61
12362a9195
132019311c
1412a74761
15b11775b
hex7849fc1

126132161 has 8 divisors (see below), whose sum is σ = 134417664. Its totient is φ = 118080160.

The previous prime is 126132143. The next prime is 126132169. The reversal of 126132161 is 161231621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126132161 - 214 = 126115777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126132169) 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, 57260 + ... + 59421.

It is an arithmetic number, because the mean of its divisors is an integer number (16802208).

Almost surely, 2126132161 is an apocalyptic number.

It is an amenable number.

126132161 is a deficient number, since it is larger than the sum of its proper divisors (8285503).

126132161 is a wasteful number, since it uses less digits than its factorization.

126132161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116751.

The product of its digits is 432, while the sum is 23.

The square root of 126132161 is about 11230.8575362703. The cubic root of 126132161 is about 501.5050133245.

Adding to 126132161 its reverse (161231621), we get a palindrome (287363782).

The spelling of 126132161 in words is "one hundred twenty-six million, one hundred thirty-two thousand, one hundred sixty-one".

Divisors: 1 23 47 1081 116681 2683663 5484007 126132161