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13120061 is a prime number
BaseRepresentation
bin110010000011…
…001000111101
3220200120100012
4302003020331
511324320221
61145113005
7216342623
oct62031075
926616305
1013120061
117451329
124488765
132944a66
141a57513
15124265b
hexc8323d

13120061 has 2 divisors, whose sum is σ = 13120062. Its totient is φ = 13120060.

The previous prime is 13120057. The next prime is 13120067. The reversal of 13120061 is 16002131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12208036 + 912025 = 3494^2 + 955^2 .

It is a cyclic number.

It is not a de Polignac number, because 13120061 - 22 = 13120057 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13120067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560030 + 6560031.

It is an arithmetic number, because the mean of its divisors is an integer number (6560031).

Almost surely, 213120061 is an apocalyptic number.

It is an amenable number.

13120061 is a deficient number, since it is larger than the sum of its proper divisors (1).

13120061 is an equidigital number, since it uses as much as digits as its factorization.

13120061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 13120061 is about 3622.1624756490. The cubic root of 13120061 is about 235.8551071252.

Adding to 13120061 its reverse (16002131), we get a palindrome (29122192).

The spelling of 13120061 in words is "thirteen million, one hundred twenty thousand, sixty-one".