75315243 has 8 divisors (see below), whose sum is σ = 100461568. Its totient is φ = 50189544.

The previous prime is 75315241. The next prime is 75315257. The reversal of 75315243 is 34251357.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75315243 - 2¹ = 75315241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75315243.

It is not an unprimeable number, because it can be changed into a prime (75315241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8646 + ... + 15012.

It is an arithmetic number, because the mean of its divisors is an integer number (12557696).

Almost surely, 2^75315243 is an apocalyptic number.

75315243 is a deficient number, since it is larger than the sum of its proper divisors (25146325).

75315243 is a wasteful number, since it uses less digits than its factorization.

75315243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10313.

The product of its digits is 12600, while the sum is 30.

The square root of 75315243 is about 8678.4355156906. The cubic root of 75315243 is about 422.3063650582.

The spelling of 75315243 in words is "seventy-five million, three hundred fifteen thousand, two hundred forty-three".