135393031 has 4 divisors (see below), whose sum is σ = 142519000. Its totient is φ = 128267064.

The previous prime is 135393007. The next prime is 135393043. The reversal of 135393031 is 130393531.

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 135393031 - 2⁹ = 135392519 is a prime.

It is a super-2 number, since 2×135393031² = 36662545686733922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135393061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3562956 + ... + 3562993.

It is an arithmetic number, because the mean of its divisors is an integer number (35629750).

Almost surely, 2^135393031 is an apocalyptic number.

135393031 is a deficient number, since it is larger than the sum of its proper divisors (7125969).

135393031 is an equidigital number, since it uses as much as digits as its factorization.

135393031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7125968.

The product of its (nonzero) digits is 3645, while the sum is 28.

The square root of 135393031 is about 11635.8511076758. The cubic root of 135393031 is about 513.4901339270.

The spelling of 135393031 in words is "one hundred thirty-five million, three hundred ninety-three thousand, thirty-one".