135535031 has 4 divisors (see below), whose sum is σ = 136877064. Its totient is φ = 134193000.

The previous prime is 135535027. The next prime is 135535063. The reversal of 135535031 is 130535531.

135535031 is nontrivially palindromic in base 15.

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 135535031 - 2² = 135535027 is a prime.

It is a super-2 number, since 2×135535031² = 36739489256341922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135535091) 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, 670865 + ... + 671066.

It is an arithmetic number, because the mean of its divisors is an integer number (34219266).

Almost surely, 2^135535031 is an apocalyptic number.

135535031 is a deficient number, since it is larger than the sum of its proper divisors (1342033).

135535031 is a wasteful number, since it uses less digits than its factorization.

135535031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342032.

The product of its (nonzero) digits is 3375, while the sum is 26.

The square root of 135535031 is about 11641.9513398743. The cubic root of 135535031 is about 513.6695870891.

The spelling of 135535031 in words is "one hundred thirty-five million, five hundred thirty-five thousand, thirty-one".