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135871097 = 23157191197
BaseRepresentation
bin10000001100100…
…11101001111001
3100110122222002212
420012103221321
5234240333342
621252104505
73236612435
oct1006235171
9313588085
10135871097
116a771a6a
1239605135
13221c2bcb
141408b9c5
15bddd182
hex8193a79

135871097 has 16 divisors (see below), whose sum is σ = 144156672. Its totient is φ = 127807680.

The previous prime is 135871091. The next prime is 135871103. The reversal of 135871097 is 790178531.

It is an interprime number because it is at equal distance from previous prime (135871091) and next prime (135871103).

It is a cyclic number.

It is not a de Polignac number, because 135871097 - 24 = 135871081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135871091) 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, 689603 + ... + 689799.

It is an arithmetic number, because the mean of its divisors is an integer number (9009792).

Almost surely, 2135871097 is an apocalyptic number.

It is an amenable number.

135871097 is a deficient number, since it is larger than the sum of its proper divisors (8285575).

135871097 is a wasteful number, since it uses less digits than its factorization.

135871097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 135871097 is about 11656.3758089725. The cubic root of 135871097 is about 514.0937932872.

The spelling of 135871097 in words is "one hundred thirty-five million, eight hundred seventy-one thousand, ninety-seven".

Divisors: 1 23 157 191 197 3611 4393 4531 29987 30929 37627 689701 711367 865421 5907439 135871097