135653574 has 64 divisors (see below), whose sum is σ = 329895936. Its totient is φ = 36301824.

The previous prime is 135653549. The next prime is 135653579. The reversal of 135653574 is 475356531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135653579) 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, 223179 + ... + 223785.

It is an arithmetic number, because the mean of its divisors is an integer number (5154624).

Almost surely, 2^135653574 is an apocalyptic number.

135653574 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 135653574, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164947968).

135653574 is an abundant number, since it is smaller than the sum of its proper divisors (194242362).

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

135653574 is a wasteful number, since it uses less digits than its factorization.

135653574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949.

The product of its digits is 189000, while the sum is 39.

The square root of 135653574 is about 11647.0414269032. The cubic root of 135653574 is about 513.8193003881.

The spelling of 135653574 in words is "one hundred thirty-five million, six hundred fifty-three thousand, five hundred seventy-four".