135213830 has 16 divisors (see below), whose sum is σ = 248564160. Its totient is φ = 52934592.

The previous prime is 135213821. The next prime is 135213893. The reversal of 135213830 is 38312531.

It is a self number, because there is not a number n which added to its sum of digits gives 135213830.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143375 + ... + 144314.

It is an arithmetic number, because the mean of its divisors is an integer number (15535260).

Almost surely, 2^135213830 is an apocalyptic number.

135213830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135213830 is a deficient number, since it is larger than the sum of its proper divisors (113350330).

135213830 is a wasteful number, since it uses less digits than its factorization.

135213830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287743.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 135213830 is about 11628.1481758705. The cubic root of 135213830 is about 513.2634886514.

The spelling of 135213830 in words is "one hundred thirty-five million, two hundred thirteen thousand, eight hundred thirty".