13145999 has 2 divisors, whose sum is σ = 13146000. Its totient is φ = 13145998.

The previous prime is 13145987. The next prime is 13146011. The reversal of 13145999 is 99954131.

It is a balanced prime because it is at equal distance from previous prime (13145987) and next prime (13146011).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13145999 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13145969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6572999 + 6573000.

It is an arithmetic number, because the mean of its divisors is an integer number (6573000).

Almost surely, 2^13145999 is an apocalyptic number.

13145999 is a deficient number, since it is larger than the sum of its proper divisors (1).

13145999 is an equidigital number, since it uses as much as digits as its factorization.

13145999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 41.

The square root of 13145999 is about 3625.7411656101. The cubic root of 13145999 is about 236.0104311678.

The spelling of 13145999 in words is "thirteen million, one hundred forty-five thousand, nine hundred ninety-nine".