135872660 has 96 divisors (see below), whose sum is σ = 360364032. Its totient is φ = 41800320.

The previous prime is 135872657. The next prime is 135872683. The reversal of 135872660 is 66278531.

It is a super-2 number, since 2×135872660² = 36922759470951200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127289 + ... + 128351.

It is an arithmetic number, because the mean of its divisors is an integer number (3753792).

Almost surely, 2^135872660 is an apocalyptic number.

135872660 is a gapful number since it is divisible by the number (10) 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 135872660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180182016).

135872660 is an abundant number, since it is smaller than the sum of its proper divisors (224491372).

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

135872660 is a wasteful number, since it uses less digits than its factorization.

135872660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 1171 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 135872660 is about 11656.4428536325. The cubic root of 135872660 is about 514.0957645809.

The spelling of 135872660 in words is "one hundred thirty-five million, eight hundred seventy-two thousand, six hundred sixty".