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134143225 = 5210750147
BaseRepresentation
bin1111111111011…
…01110011111001
3100100102011220121
413333231303321
5233320040400
621151053241
73216125056
oct777556371
9310364817
10134143225
11697a1877
1238b11221
1321a395b8
1413b5c02d
15bb9b21a
hex7fedcf9

134143225 has 12 divisors (see below), whose sum is σ = 167895504. Its totient is φ = 106309520.

The previous prime is 134143223. The next prime is 134143253. The reversal of 134143225 is 522341431.

It is not a de Polignac number, because 134143225 - 21 = 134143223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134143225.

It is not an unprimeable number, because it can be changed into a prime (134143223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22399 + ... + 27748.

It is an arithmetic number, because the mean of its divisors is an integer number (13991292).

Almost surely, 2134143225 is an apocalyptic number.

It is an amenable number.

134143225 is a deficient number, since it is larger than the sum of its proper divisors (33752279).

134143225 is a wasteful number, since it uses less digits than its factorization.

134143225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50264 (or 50259 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 134143225 is about 11582.0216283687. The cubic root of 134143225 is about 511.9052470022.

Adding to 134143225 its reverse (522341431), we get a palindrome (656484656).

The spelling of 134143225 in words is "one hundred thirty-four million, one hundred forty-three thousand, two hundred twenty-five".

Divisors: 1 5 25 107 535 2675 50147 250735 1253675 5365729 26828645 134143225