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135107131 = 6119711243
BaseRepresentation
bin10000000110110…
…01001000111011
3100102020011010211
420003121020323
5234041412011
621223451551
73230251225
oct1003311073
9312204124
10135107131
116a29aa95
12392b6bb7
1321cb6263
1413d2d415
15bcdbb21
hex80d923b

135107131 has 8 divisors (see below), whose sum is σ = 138031344. Its totient is φ = 132205920.

The previous prime is 135107117. The next prime is 135107149. The reversal of 135107131 is 131701531.

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 135107131 - 225 = 101552699 is a prime.

It is a super-2 number, since 2×1351071312 = 36507873694102322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135107111) 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, 6396 + ... + 17638.

It is an arithmetic number, because the mean of its divisors is an integer number (17253918).

Almost surely, 2135107131 is an apocalyptic number.

135107131 is a deficient number, since it is larger than the sum of its proper divisors (2924213).

135107131 is a wasteful number, since it uses less digits than its factorization.

135107131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11501.

The product of its (nonzero) digits is 315, while the sum is 22.

The square root of 135107131 is about 11623.5593085767. The cubic root of 135107131 is about 513.1284454819.

Adding to 135107131 its reverse (131701531), we get a palindrome (266808662).

The spelling of 135107131 in words is "one hundred thirty-five million, one hundred seven thousand, one hundred thirty-one".

Divisors: 1 61 197 11243 12017 685823 2214871 135107131