135204031 has 8 divisors (see below), whose sum is σ = 139031360. Its totient is φ = 131385888.

The previous prime is 135204029. The next prime is 135204037. The reversal of 135204031 is 130402531.

135204031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135204031 - 2¹ = 135204029 is a prime.

It is a super-2 number, since 2×135204031² = 36560259997297922, 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 (135204037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36685 + ... + 40201.

It is an arithmetic number, because the mean of its divisors is an integer number (17378920).

Almost surely, 2^135204031 is an apocalyptic number.

135204031 is a deficient number, since it is larger than the sum of its proper divisors (3827329).

135204031 is a wasteful number, since it uses less digits than its factorization.

135204031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 135204031 is about 11627.7268199765. The cubic root of 135204031 is about 513.2510895488.

Adding to 135204031 its reverse (130402531), we get a palindrome (265606562).

The spelling of 135204031 in words is "one hundred thirty-five million, two hundred four thousand, thirty-one".