135208406 has 24 divisors (see below), whose sum is σ = 212113944. Its totient is φ = 64600640.

The previous prime is 135208399. The next prime is 135208417. The reversal of 135208406 is 604802531.

135208406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230045 + ... + 230631.

It is an arithmetic number, because the mean of its divisors is an integer number (8838081).

Almost surely, 2^135208406 is an apocalyptic number.

135208406 is a deficient number, since it is larger than the sum of its proper divisors (76905538).

135208406 is an equidigital number, since it uses as much as digits as its factorization.

135208406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 135208406 is about 11627.9149463694. The cubic root of 135208406 is about 513.2566255014.

The spelling of 135208406 in words is "one hundred thirty-five million, two hundred eight thousand, four hundred six".