135781030 has 64 divisors (see below), whose sum is σ = 320785920. Its totient is φ = 40089600.

The previous prime is 135781003. The next prime is 135781031. The reversal of 135781030 is 30187531.

135781030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 135781030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135781031) 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, 9990 + ... + 19270.

It is an arithmetic number, because the mean of its divisors is an integer number (5012280).

Almost surely, 2^135781030 is an apocalyptic number.

135781030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135781030 is an abundant number, since it is smaller than the sum of its proper divisors (185004890).

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

135781030 is a wasteful number, since it uses less digits than its factorization.

135781030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9325.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 135781030 is about 11652.5117464004. The cubic root of 135781030 is about 513.9801730456.

The spelling of 135781030 in words is "one hundred thirty-five million, seven hundred eighty-one thousand, thirty".