13131061 has 2 divisors, whose sum is σ = 13131062. Its totient is φ = 13131060.

The previous prime is 13131037. The next prime is 13131067. The reversal of 13131061 is 16013131.

13131061 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10176100 + 2954961 = 3190^2 + 1719^2 .

It is a cyclic number.

It is not a de Polignac number, because 13131061 - 2⁹ = 13130549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13131067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565530 + 6565531.

It is an arithmetic number, because the mean of its divisors is an integer number (6565531).

Almost surely, 2^13131061 is an apocalyptic number.

It is an amenable number.

13131061 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131061 is an equidigital number, since it uses as much as digits as its factorization.

13131061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 13131061 is about 3623.6805874690. The cubic root of 13131061 is about 235.9210031973.

Adding to 13131061 its reverse (16013131), we get a palindrome (29144192).

The spelling of 13131061 in words is "thirteen million, one hundred thirty-one thousand, sixty-one".