135525406 has 16 divisors (see below), whose sum is σ = 204930000. Its totient is φ = 67218048.

The previous prime is 135525391. The next prime is 135525421. The reversal of 135525406 is 604525531.

It is an interprime number because it is at equal distance from previous prime (135525391) and next prime (135525421).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 228246 + ... + 228838.

It is an arithmetic number, because the mean of its divisors is an integer number (12808125).

Almost surely, 2^135525406 is an apocalyptic number.

135525406 is a deficient number, since it is larger than the sum of its proper divisors (69404594).

135525406 is a wasteful number, since it uses less digits than its factorization.

135525406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 135525406 is about 11641.5379568165. The cubic root of 135525406 is about 513.6574274116.

The spelling of 135525406 in words is "one hundred thirty-five million, five hundred twenty-five thousand, four hundred six".