135642011 has 2 divisors, whose sum is σ = 135642012. Its totient is φ = 135642010.

The previous prime is 135641977. The next prime is 135642043. The reversal of 135642011 is 110246531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135642011 - 2²⁶ = 68533147 is a prime.

It is not a weakly prime, because it can be changed into another prime (135642061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67821005 + 67821006.

It is an arithmetic number, because the mean of its divisors is an integer number (67821006).

Almost surely, 2^135642011 is an apocalyptic number.

135642011 is a deficient number, since it is larger than the sum of its proper divisors (1).

135642011 is an equidigital number, since it uses as much as digits as its factorization.

135642011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 135642011 is about 11646.5450241692. The cubic root of 135642011 is about 513.8047007939.

Adding to 135642011 its reverse (110246531), we get a palindrome (245888542).

The spelling of 135642011 in words is "one hundred thirty-five million, six hundred forty-two thousand, eleven".