75245231 has 8 divisors (see below), whose sum is σ = 76235904. Its totient is φ = 74260480.

The previous prime is 75245173. The next prime is 75245243. The reversal of 75245231 is 13254257.

It is a happy number.

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 75245231 - 2¹⁰ = 75244207 is a prime.

It is a super-2 number, since 2×75245231² = 11323689576486722, 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 = 75245194 and 75245203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75245251) 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, 27746 + ... + 30336.

It is an arithmetic number, because the mean of its divisors is an integer number (9529488).

Almost surely, 2^75245231 is an apocalyptic number.

75245231 is a deficient number, since it is larger than the sum of its proper divisors (990673).

75245231 is a wasteful number, since it uses less digits than its factorization.

75245231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961.

The product of its digits is 8400, while the sum is 29.

The square root of 75245231 is about 8674.4009015032. The cubic root of 75245231 is about 422.1754677864.

Adding to 75245231 its reverse (13254257), we get a palindrome (88499488).

The spelling of 75245231 in words is "seventy-five million, two hundred forty-five thousand, two hundred thirty-one".