75328231 has 8 divisors (see below), whose sum is σ = 83334528. Its totient is φ = 67515000.

The previous prime is 75328223. The next prime is 75328237. The reversal of 75328231 is 13282357.

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

It is a cyclic number.

It is not a de Polignac number, because 75328231 - 2³ = 75328223 is a prime.

It is a super-2 number, since 2×75328231² = 11348684771178722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75328193 and 75328202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75328237) 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 7 ways as a sum of consecutive naturals, for example, 47445 + ... + 49006.

It is an arithmetic number, because the mean of its divisors is an integer number (10416816).

Almost surely, 2^75328231 is an apocalyptic number.

75328231 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

75328231 is a deficient number, since it is larger than the sum of its proper divisors (8006297).

75328231 is a wasteful number, since it uses less digits than its factorization.

75328231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96533.

The product of its digits is 10080, while the sum is 31.

The square root of 75328231 is about 8679.1837749871. The cubic root of 75328231 is about 422.3306390280.

The spelling of 75328231 in words is "seventy-five million, three hundred twenty-eight thousand, two hundred thirty-one".