135071898 has 48 divisors (see below), whose sum is σ = 302029056. Its totient is φ = 40210560.

The previous prime is 135071887. The next prime is 135071899. The reversal of 135071898 is 898170531.

It is not an unprimeable number, because it can be changed into a prime (135071899) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29286 + ... + 33582.

It is an arithmetic number, because the mean of its divisors is an integer number (6292272).

Almost surely, 2^135071898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135071898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151014528).

135071898 is an abundant number, since it is smaller than the sum of its proper divisors (166957158).

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

135071898 is a wasteful number, since it uses less digits than its factorization.

135071898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4359 (or 4346 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 135071898 is about 11622.0436240792. The cubic root of 135071898 is about 513.0838373596.

The spelling of 135071898 in words is "one hundred thirty-five million, seventy-one thousand, eight hundred ninety-eight".