135899503 has 2 divisors, whose sum is σ = 135899504. Its totient is φ = 135899502.

The previous prime is 135899497. The next prime is 135899509. The reversal of 135899503 is 305998531.

135899503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (135899497) and next prime (135899509).

It is a cyclic number.

It is not a de Polignac number, because 135899503 - 2¹⁷ = 135768431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135899503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135899509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67949751 + 67949752.

It is an arithmetic number, because the mean of its divisors is an integer number (67949752).

Almost surely, 2^135899503 is an apocalyptic number.

135899503 is a deficient number, since it is larger than the sum of its proper divisors (1).

135899503 is an equidigital number, since it uses as much as digits as its factorization.

135899503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 43.

The square root of 135899503 is about 11657.5942200782. The cubic root of 135899503 is about 514.1296172680.

The spelling of 135899503 in words is "one hundred thirty-five million, eight hundred ninety-nine thousand, five hundred three".