75213365 has 8 divisors (see below), whose sum is σ = 91055448. Its totient is φ = 59637760.

The previous prime is 75213361. The next prime is 75213367. The reversal of 75213365 is 56331257.

It can be written as a sum of positive squares in 4 ways, for example, as 7431076 + 67782289 = 2726^2 + 8233^2 .

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

It is not a de Polignac number, because 75213365 - 2² = 75213361 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 (75213361) 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, 65996 + ... + 67125.

It is an arithmetic number, because the mean of its divisors is an integer number (11381931).

Almost surely, 2^75213365 is an apocalyptic number.

It is an amenable number.

75213365 is a deficient number, since it is larger than the sum of its proper divisors (15842083).

75213365 is a wasteful number, since it uses less digits than its factorization.

75213365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133239.

The product of its digits is 18900, while the sum is 32.

The square root of 75213365 is about 8672.5639230853. The cubic root of 75213365 is about 422.1158629324.

The spelling of 75213365 in words is "seventy-five million, two hundred thirteen thousand, three hundred sixty-five".