135523674 has 96 divisors (see below), whose sum is σ = 354541824. Its totient is φ = 36858240.

The previous prime is 135523667. The next prime is 135523681. The reversal of 135523674 is 476325531.

135523674 is a `hidden beast` number, since 1 + 3 + 552 + 36 + 74 = 666.

135523674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (135523667) and next prime (135523681).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94527 + ... + 95949.

It is an arithmetic number, because the mean of its divisors is an integer number (3693144).

Almost surely, 2^135523674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135523674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177270912).

135523674 is an abundant number, since it is smaller than the sum of its proper divisors (219018150).

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

135523674 is a wasteful number, since it uses less digits than its factorization.

135523674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492 (or 1489 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 135523674 is about 11641.4635677822. The cubic root of 135523674 is about 513.6552392402.

The spelling of 135523674 in words is "one hundred thirty-five million, five hundred twenty-three thousand, six hundred seventy-four".