135898488 has 144 divisors (see below), whose sum is σ = 426371400. Its totient is φ = 38966400.

The previous prime is 135898487. The next prime is 135898501. The reversal of 135898488 is 884898531.

135898488 is a `hidden beast` number, since 13 + 589 + 8 + 48 + 8 = 666.

It is a super-2 number, since 2×135898488² = 36936798081372288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135898481) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 165118 + ... + 165938.

Almost surely, 2^135898488 is an apocalyptic number.

135898488 is a gapful number since it is divisible by the number (18) 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 135898488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213185700).

135898488 is an abundant number, since it is smaller than the sum of its proper divisors (290472912).

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

135898488 is a wasteful number, since it uses less digits than its factorization.

135898488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874 (or 856 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 54.

The square root of 135898488 is about 11657.5506861433. The cubic root of 135898488 is about 514.1283372956.

The spelling of 135898488 in words is "one hundred thirty-five million, eight hundred ninety-eight thousand, four hundred eighty-eight".