135925830 has 64 divisors (see below), whose sum is σ = 363571200. Its totient is φ = 36136800.

The previous prime is 135925817. The next prime is 135925831. The reversal of 135925830 is 38529531.

135925830 is a `hidden beast` number, since 13 + 592 + 58 + 3 + 0 = 666.

It is a super-2 number, since 2×135925830² = 36951662522377800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135925831) 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, 128805 + ... + 129855.

It is an arithmetic number, because the mean of its divisors is an integer number (5680800).

Almost surely, 2^135925830 is an apocalyptic number.

135925830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 135925830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181785600).

135925830 is an abundant number, since it is smaller than the sum of its proper divisors (227645370).

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

135925830 is a wasteful number, since it uses less digits than its factorization.

135925830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546 (or 1540 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 135925830 is about 11658.7233434883. The cubic root of 135925830 is about 514.1628148790.

The spelling of 135925830 in words is "one hundred thirty-five million, nine hundred twenty-five thousand, eight hundred thirty".