135020401 has 8 divisors (see below), whose sum is σ = 137131520. Its totient is φ = 132919488.

The previous prime is 135020393. The next prime is 135020429. The reversal of 135020401 is 104020531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135020401 - 2³ = 135020393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135020101) 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 7 ways as a sum of consecutive naturals, for example, 26665 + ... + 31321.

It is an arithmetic number, because the mean of its divisors is an integer number (17141440).

Almost surely, 2^135020401 is an apocalyptic number.

It is an amenable number.

135020401 is a deficient number, since it is larger than the sum of its proper divisors (2111119).

135020401 is an equidigital number, since it uses as much as digits as its factorization.

135020401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5103.

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

The square root of 135020401 is about 11619.8279247156. The cubic root of 135020401 is about 513.0186236046.

Adding to 135020401 its reverse (104020531), we get a palindrome (239040932).

The spelling of 135020401 in words is "one hundred thirty-five million, twenty thousand, four hundred one".