75148785 has 24 divisors (see below), whose sum is σ = 130463424. Its totient is φ = 40016160.

The previous prime is 75148763. The next prime is 75148793. The reversal of 75148785 is 58784157.

It is a happy number.

It is not a de Polignac number, because 75148785 - 2⁹ = 75148273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 75148785.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47050 + ... + 48620.

It is an arithmetic number, because the mean of its divisors is an integer number (5435976).

Almost surely, 2^75148785 is an apocalyptic number.

It is an amenable number.

75148785 is a deficient number, since it is larger than the sum of its proper divisors (55314639).

75148785 is a wasteful number, since it uses less digits than its factorization.

75148785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2645 (or 2642 counting only the distinct ones).

The product of its digits is 313600, while the sum is 45.

The square root of 75148785 is about 8668.8398877820. The cubic root of 75148785 is about 421.9950154020.

The spelling of 75148785 in words is "seventy-five million, one hundred forty-eight thousand, seven hundred eighty-five".