135634398 has 64 divisors (see below), whose sum is σ = 296110080. Its totient is φ = 41260032.

The previous prime is 135634379. The next prime is 135634399. The reversal of 135634398 is 893436531.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135634399) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 608115 + ... + 608337.

It is an arithmetic number, because the mean of its divisors is an integer number (4626720).

Almost surely, 2^135634398 is an apocalyptic number.

135634398 is an abundant number, since it is smaller than the sum of its proper divisors (160475682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135634398 is a wasteful number, since it uses less digits than its factorization.

135634398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401.

The product of its digits is 233280, while the sum is 42.

The square root of 135634398 is about 11646.2181844580. The cubic root of 135634398 is about 513.7950880681.

The spelling of 135634398 in words is "one hundred thirty-five million, six hundred thirty-four thousand, three hundred ninety-eight".