75447130 has 48 divisors (see below), whose sum is σ = 155820672. Its totient is φ = 26232800.

The previous prime is 75447109. The next prime is 75447131. The reversal of 75447130 is 3174457.

It is a junction number, because it is equal to n+sod(n) for n = 75447092 and 75447101.

It is not an unprimeable number, because it can be changed into a prime (75447131) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 26475 + ... + 29185.

It is an arithmetic number, because the mean of its divisors is an integer number (3246264).

Almost surely, 2^75447130 is an apocalyptic number.

75447130 is an abundant number, since it is smaller than the sum of its proper divisors (80373542).

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

75447130 is a wasteful number, since it uses less digits than its factorization.

75447130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763 (or 2752 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 75447130 is about 8686.0307390660. The cubic root of 75447130 is about 422.5527261672.

The spelling of 75447130 in words is "seventy-five million, four hundred forty-seven thousand, one hundred thirty".