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135331441 = 7178571327
BaseRepresentation
bin10000001000011…
…11111001110001
3100102122112211121
420010033321301
5234121101231
621232342241
73232204210
oct1004177161
9312575747
10135331441
116a433573
12393a4981
132206439b
1413d8b077
15bd33311
hex810fe71

135331441 has 16 divisors (see below), whose sum is σ = 164077056. Its totient is φ = 108965376.

The previous prime is 135331423. The next prime is 135331451. The reversal of 135331441 is 144133531.

It is not a de Polignac number, because 135331441 - 211 = 135329393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135331411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101320 + ... + 102646.

It is an arithmetic number, because the mean of its divisors is an integer number (10254816).

Almost surely, 2135331441 is an apocalyptic number.

It is an amenable number.

135331441 is a deficient number, since it is larger than the sum of its proper divisors (28745615).

135331441 is a wasteful number, since it uses less digits than its factorization.

135331441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208.

The product of its digits is 2160, while the sum is 25.

The square root of 135331441 is about 11633.2042447470. The cubic root of 135331441 is about 513.4122602634.

Adding to 135331441 its reverse (144133531), we get a palindrome (279464972).

The spelling of 135331441 in words is "one hundred thirty-five million, three hundred thirty-one thousand, four hundred forty-one".

Divisors: 1 7 17 119 857 1327 5999 9289 14569 22559 101983 157913 1137239 7960673 19333063 135331441