75133140 has 24 divisors (see below), whose sum is σ = 210372960. Its totient is φ = 20035488.

The previous prime is 75133127. The next prime is 75133147. The reversal of 75133140 is 4133157.

It is a self number, because there is not a number n which added to its sum of digits gives 75133140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75133147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626050 + ... + 626169.

It is an arithmetic number, because the mean of its divisors is an integer number (8765540).

Almost surely, 2^75133140 is an apocalyptic number.

It is an amenable number.

75133140 is an abundant number, since it is smaller than the sum of its proper divisors (135239820).

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

75133140 is a wasteful number, since it uses less digits than its factorization.

75133140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252231 (or 1252229 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 75133140 is about 8667.9374709327. The cubic root of 75133140 is about 421.9657287443.

Adding to 75133140 its reverse (4133157), we get a palindrome (79266297).

The spelling of 75133140 in words is "seventy-five million, one hundred thirty-three thousand, one hundred forty".