135535312501 has 4 divisors (see below), whose sum is σ = 136432897504. Its totient is φ = 134637727500.

The previous prime is 135535312457. The next prime is 135535312537. The reversal of 135535312501 is 105213535531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135535312501 - 2²⁵ = 135501758069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135535312201) 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, 448792275 + ... + 448792576.

It is an arithmetic number, because the mean of its divisors is an integer number (34108224376).

Almost surely, 2^135535312501 is an apocalyptic number.

It is an amenable number.

135535312501 is a deficient number, since it is larger than the sum of its proper divisors (897585003).

135535312501 is an equidigital number, since it uses as much as digits as its factorization.

135535312501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897585002.

The product of its (nonzero) digits is 33750, while the sum is 34.

The spelling of 135535312501 in words is "one hundred thirty-five billion, five hundred thirty-five million, three hundred twelve thousand, five hundred one".