75135258 has 48 divisors (see below), whose sum is σ = 183336192. Its totient is φ = 22032000.

The previous prime is 75135251. The next prime is 75135287. The reversal of 75135258 is 85253157.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75135251) 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, 18 + ... + 12258.

It is an arithmetic number, because the mean of its divisors is an integer number (3819504).

Almost surely, 2^75135258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75135258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91668096).

75135258 is an abundant number, since it is smaller than the sum of its proper divisors (108200934).

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

75135258 is a wasteful number, since it uses less digits than its factorization.

75135258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12291 (or 12288 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 75135258 is about 8668.0596444648. The cubic root of 75135258 is about 421.9696937723.

The spelling of 75135258 in words is "seventy-five million, one hundred thirty-five thousand, two hundred fifty-eight".