75405148 has 48 divisors (see below), whose sum is σ = 170974720. Its totient is φ = 28257984.

The previous prime is 75405139. The next prime is 75405151. The reversal of 75405148 is 84150457.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1465 + ... + 12367.

Almost surely, 2^75405148 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 75405148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85487360).

75405148 is an abundant number, since it is smaller than the sum of its proper divisors (95569572).

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

75405148 is a wasteful number, since it uses less digits than its factorization.

75405148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10946 (or 10944 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 75405148 is about 8683.6137638658. The cubic root of 75405148 is about 422.4743361744.

The spelling of 75405148 in words is "seventy-five million, four hundred five thousand, one hundred forty-eight".