135222301 has 4 divisors (see below), whose sum is σ = 143176572. Its totient is φ = 127268032.

The previous prime is 135222287. The next prime is 135222317. The reversal of 135222301 is 103222531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 117202276 + 18020025 = 10826^2 + 4245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135222301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135222001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3977110 + ... + 3977143.

It is an arithmetic number, because the mean of its divisors is an integer number (35794143).

Almost surely, 2^135222301 is an apocalyptic number.

It is an amenable number.

135222301 is a deficient number, since it is larger than the sum of its proper divisors (7954271).

135222301 is an equidigital number, since it uses as much as digits as its factorization.

135222301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7954270.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 135222301 is about 11628.5124156102. The cubic root of 135222301 is about 513.2742068948.

Adding to 135222301 its reverse (103222531), we get a palindrome (238444832).

It can be divided in two parts, 1352 and 22301, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 135222301 in words is "one hundred thirty-five million, two hundred twenty-two thousand, three hundred one".