75235140 has 144 divisors (see below), whose sum is σ = 239715840. Its totient is φ = 19077120.

The previous prime is 75235103. The next prime is 75235177. The reversal of 75235140 is 4153257.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (75235103) and next prime (75235177).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 541191 + ... + 541329.

Almost surely, 2^75235140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75235140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119857920).

75235140 is an abundant number, since it is smaller than the sum of its proper divisors (164480700).

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

75235140 is a wasteful number, since it uses less digits than its factorization.

75235140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 75235140 is about 8673.8192279987. The cubic root of 75235140 is about 422.1565945499.

Adding to 75235140 its reverse (4153257), we get a palindrome (79388397).

The spelling of 75235140 in words is "seventy-five million, two hundred thirty-five thousand, one hundred forty".