135251900 has 72 divisors (see below), whose sum is σ = 342644736. Its totient is φ = 45374400.

The previous prime is 135251843. The next prime is 135251923. The reversal of 135251900 is 9152531.

It is a super-2 number, since 2×135251900² = 36586152907220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135251900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30845 + ... + 34955.

Almost surely, 2^135251900 is an apocalyptic number.

135251900 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 135251900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171322368).

135251900 is an abundant number, since it is smaller than the sum of its proper divisors (207392836).

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

135251900 is a wasteful number, since it uses less digits than its factorization.

135251900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4179 (or 4172 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 135251900 is about 11629.7850367064. The cubic root of 135251900 is about 513.3116546007.

The spelling of 135251900 in words is "one hundred thirty-five million, two hundred fifty-one thousand, nine hundred".