135041599 has 24 divisors (see below), whose sum is σ = 172368000. Its totient is φ = 104615280.

The previous prime is 135041593. The next prime is 135041609. The reversal of 135041599 is 995140531.

It is a happy number.

It is not a de Polignac number, because 135041599 - 2⁵ = 135041567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135041593) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106632 + ... + 107890.

It is an arithmetic number, because the mean of its divisors is an integer number (7182000).

Almost surely, 2^135041599 is an apocalyptic number.

135041599 is a deficient number, since it is larger than the sum of its proper divisors (37326401).

135041599 is a wasteful number, since it uses less digits than its factorization.

135041599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483 (or 1476 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 135041599 is about 11620.7400366758. The cubic root of 135041599 is about 513.0454699173.

The spelling of 135041599 in words is "one hundred thirty-five million, forty-one thousand, five hundred ninety-nine".