75001231 has 2 divisors, whose sum is σ = 75001232. Its totient is φ = 75001230.

The previous prime is 75001219. The next prime is 75001243. The reversal of 75001231 is 13210057.

It is a balanced prime because it is at equal distance from previous prime (75001219) and next prime (75001243).

It is a cyclic number.

It is not a de Polignac number, because 75001231 - 2⁷ = 75001103 is a prime.

It is a super-2 number, since 2×75001231² = 11250369303030722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 75001199 and 75001208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75001211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37500615 + 37500616.

It is an arithmetic number, because the mean of its divisors is an integer number (37500616).

Almost surely, 2^75001231 is an apocalyptic number.

75001231 is a deficient number, since it is larger than the sum of its proper divisors (1).

75001231 is an equidigital number, since it uses as much as digits as its factorization.

75001231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 75001231 is about 8660.3251093709. The cubic root of 75001231 is about 421.7186398952.

Adding to 75001231 its reverse (13210057), we get a palindrome (88211288).

The spelling of 75001231 in words is "seventy-five million, one thousand, two hundred thirty-one".