135773203 has 4 divisors (see below), whose sum is σ = 143759880. Its totient is φ = 127786528.

The previous prime is 135773167. The next prime is 135773233. The reversal of 135773203 is 302377531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302377531 = 173 ⋅1747847.

It is a cyclic number.

It is not a de Polignac number, because 135773203 - 2⁹ = 135772691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135773233) 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 in 3 ways as a sum of consecutive naturals, for example, 3993313 + ... + 3993346.

It is an arithmetic number, because the mean of its divisors is an integer number (35939970).

Almost surely, 2^135773203 is an apocalyptic number.

135773203 is a deficient number, since it is larger than the sum of its proper divisors (7986677).

135773203 is an equidigital number, since it uses as much as digits as its factorization.

135773203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7986676.

The product of its (nonzero) digits is 13230, while the sum is 31.

The square root of 135773203 is about 11652.1758912231. The cubic root of 135773203 is about 513.9702968498.

The spelling of 135773203 in words is "one hundred thirty-five million, seven hundred seventy-three thousand, two hundred three".