75130973 has 4 divisors (see below), whose sum is σ = 79550460. Its totient is φ = 70711488.

The previous prime is 75130961. The next prime is 75130999. The reversal of 75130973 is 37903157.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50310649 + 24820324 = 7093^2 + 4982^2 .

It is a cyclic number.

It is not a de Polignac number, because 75130973 - 2¹⁰ = 75129949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75130373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2209718 + ... + 2209751.

It is an arithmetic number, because the mean of its divisors is an integer number (19887615).

Almost surely, 2^75130973 is an apocalyptic number.

It is an amenable number.

75130973 is a deficient number, since it is larger than the sum of its proper divisors (4419487).

75130973 is a wasteful number, since it uses less digits than its factorization.

75130973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4419486.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 75130973 is about 8667.8124691297. The cubic root of 75130973 is about 421.9616719081.

The spelling of 75130973 in words is "seventy-five million, one hundred thirty thousand, nine hundred seventy-three".