135938571 has 4 divisors (see below), whose sum is σ = 181251432. Its totient is φ = 90625712.

The previous prime is 135938567. The next prime is 135938611. The reversal of 135938571 is 175839531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135938571 - 2² = 135938567 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135938071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22656426 + ... + 22656431.

It is an arithmetic number, because the mean of its divisors is an integer number (45312858).

Almost surely, 2^135938571 is an apocalyptic number.

135938571 is a deficient number, since it is larger than the sum of its proper divisors (45312861).

135938571 is an equidigital number, since it uses as much as digits as its factorization.

135938571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45312860.

The product of its digits is 113400, while the sum is 42.

The square root of 135938571 is about 11659.2697455715. The cubic root of 135938571 is about 514.1788793845.

The spelling of 135938571 in words is "one hundred thirty-five million, nine hundred thirty-eight thousand, five hundred seventy-one".