135015601 has 8 divisors (see below), whose sum is σ = 155196864. Its totient is φ = 115057680.

The previous prime is 135015599. The next prime is 135015607. The reversal of 135015601 is 106510531.

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 135015601 - 2¹ = 135015599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135015607) 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, 54535 + ... + 56956.

It is an arithmetic number, because the mean of its divisors is an integer number (19399608).

Almost surely, 2^135015601 is an apocalyptic number.

It is an amenable number.

135015601 is a deficient number, since it is larger than the sum of its proper divisors (20181263).

135015601 is a wasteful number, since it uses less digits than its factorization.

135015601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111671.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 135015601 is about 11619.6213793738. The cubic root of 135015601 is about 513.0125442305.

The spelling of 135015601 in words is "one hundred thirty-five million, fifteen thousand, six hundred one".