135573516 has 72 divisors (see below), whose sum is σ = 372130304. Its totient is φ = 41368320.

The previous prime is 135573499. The next prime is 135573527. The reversal of 135573516 is 615375531.

135573516 is a `hidden beast` number, since 1 + 35 + 573 + 51 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58296 + ... + 60576.

Almost surely, 2^135573516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135573516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186065152).

135573516 is an abundant number, since it is smaller than the sum of its proper divisors (236556788).

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

135573516 is a wasteful number, since it uses less digits than its factorization.

135573516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431 (or 2426 counting only the distinct ones).

The product of its digits is 47250, while the sum is 36.

The square root of 135573516 is about 11643.6040812113. The cubic root of 135573516 is about 513.7182010972.

The spelling of 135573516 in words is "one hundred thirty-five million, five hundred seventy-three thousand, five hundred sixteen".