135042001 has 2 divisors, whose sum is σ = 135042002. Its totient is φ = 135042000.

The previous prime is 135041989. The next prime is 135042007. The reversal of 135042001 is 100240531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130530625 + 4511376 = 11425^2 + 2124^2 .

It is a cyclic number.

It is not a de Polignac number, because 135042001 - 2¹¹ = 135039953 is a prime.

It is not a weakly prime, because it can be changed into another prime (135042007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67521000 + 67521001.

It is an arithmetic number, because the mean of its divisors is an integer number (67521001).

Almost surely, 2^135042001 is an apocalyptic number.

It is an amenable number.

135042001 is a deficient number, since it is larger than the sum of its proper divisors (1).

135042001 is an equidigital number, since it uses as much as digits as its factorization.

135042001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 135042001 is about 11620.7573333238. The cubic root of 135042001 is about 513.0459790051.

Adding to 135042001 its reverse (100240531), we get a palindrome (235282532).

The spelling of 135042001 in words is "one hundred thirty-five million, forty-two thousand, one".