135366401 has 8 divisors (see below), whose sum is σ = 136617600. Its totient is φ = 134119440.

The previous prime is 135366391. The next prime is 135366437. The reversal of 135366401 is 104663531.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135366401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135366481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126095 + ... + 127163.

It is an arithmetic number, because the mean of its divisors is an integer number (17077200).

Almost surely, 2^135366401 is an apocalyptic number.

It is an amenable number.

135366401 is a deficient number, since it is larger than the sum of its proper divisors (1251199).

135366401 is a wasteful number, since it uses less digits than its factorization.

135366401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 135366401 is about 11634.7067431887. The cubic root of 135366401 is about 513.4564661703.

The spelling of 135366401 in words is "one hundred thirty-five million, three hundred sixty-six thousand, four hundred one".