135199373 has 2 divisors, whose sum is σ = 135199374. Its totient is φ = 135199372.

The previous prime is 135199357. The next prime is 135199387. The reversal of 135199373 is 373991531.

135199373 is digitally balanced in base 2, because in such base 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., 134490409 + 708964 = 11597^2 + 842^2 .

It is a cyclic number.

It is not a de Polignac number, because 135199373 - 2⁴ = 135199357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135199373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135199303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67599686 + 67599687.

It is an arithmetic number, because the mean of its divisors is an integer number (67599687).

Almost surely, 2^135199373 is an apocalyptic number.

It is an amenable number.

135199373 is a deficient number, since it is larger than the sum of its proper divisors (1).

135199373 is an equidigital number, since it uses as much as digits as its factorization.

135199373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76545, while the sum is 41.

The square root of 135199373 is about 11627.5265211480. The cubic root of 135199373 is about 513.2451953680.

The spelling of 135199373 in words is "one hundred thirty-five million, one hundred ninety-nine thousand, three hundred seventy-three".