135177732 has 72 divisors (see below), whose sum is σ = 358874880. Its totient is φ = 42845760.

The previous prime is 135177689. The next prime is 135177733. The reversal of 135177732 is 237771531.

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

It is not an unprimeable number, because it can be changed into a prime (135177733) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64818 + ... + 66870.

Almost surely, 2^135177732 is an apocalyptic number.

135177732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135177732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179437440).

135177732 is an abundant number, since it is smaller than the sum of its proper divisors (223697148).

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

135177732 is a wasteful number, since it uses less digits than its factorization.

135177732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153 (or 2148 counting only the distinct ones).

The product of its digits is 30870, while the sum is 36.

The square root of 135177732 is about 11626.5958904574. The cubic root of 135177732 is about 513.2178093141.

The spelling of 135177732 in words is "one hundred thirty-five million, one hundred seventy-seven thousand, seven hundred thirty-two".