135617601 has 32 divisors (see below), whose sum is σ = 216437760. Its totient is φ = 73894464.

The previous prime is 135617593. The next prime is 135617609. The reversal of 135617601 is 106716531.

It is an interprime number because it is at equal distance from previous prime (135617593) and next prime (135617609).

It is not a de Polignac number, because 135617601 - 2³ = 135617593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135617609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49206 + ... + 51888.

It is an arithmetic number, because the mean of its divisors is an integer number (6763680).

Almost surely, 2^135617601 is an apocalyptic number.

It is an amenable number.

135617601 is a deficient number, since it is larger than the sum of its proper divisors (80820159).

135617601 is a wasteful number, since it uses less digits than its factorization.

135617601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 135617601 is about 11645.4970267481. The cubic root of 135617601 is about 513.7738776856.

The spelling of 135617601 in words is "one hundred thirty-five million, six hundred seventeen thousand, six hundred one".