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13475149 is a prime number
BaseRepresentation
bin110011011001…
…110101001101
3221100121102121
4303121311031
511422201044
61200452541
7222352102
oct63316515
927317377
1013475149
117674096
12461a151
132a3a57c
141b0aaa9
1512b2984
hexcd9d4d

13475149 has 2 divisors, whose sum is σ = 13475150. Its totient is φ = 13475148.

The previous prime is 13475131. The next prime is 13475159. The reversal of 13475149 is 94157431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8555625 + 4919524 = 2925^2 + 2218^2 .

It is a cyclic number.

It is not a de Polignac number, because 13475149 - 215 = 13442381 is a prime.

It is equal to p878119 and since 13475149 and 878119 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13475129) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6737574 + 6737575.

It is an arithmetic number, because the mean of its divisors is an integer number (6737575).

Almost surely, 213475149 is an apocalyptic number.

It is an amenable number.

13475149 is a deficient number, since it is larger than the sum of its proper divisors (1).

13475149 is an equidigital number, since it uses as much as digits as its factorization.

13475149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 13475149 is about 3670.8512636717. The cubic root of 13475149 is about 237.9639624837.

The spelling of 13475149 in words is "thirteen million, four hundred seventy-five thousand, one hundred forty-nine".