75065231 has 2 divisors, whose sum is σ = 75065232. Its totient is φ = 75065230.

The previous prime is 75065209. The next prime is 75065239. The reversal of 75065231 is 13256057.

It is a strong prime.

It is an emirp because it is prime and its reverse (13256057) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75065231 - 2¹⁴ = 75048847 is a prime.

It is a super-2 number, since 2×75065231² = 11269577810166722, 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 = 75065194 and 75065203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75065239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37532615 + 37532616.

It is an arithmetic number, because the mean of its divisors is an integer number (37532616).

Almost surely, 2^75065231 is an apocalyptic number.

75065231 is a deficient number, since it is larger than the sum of its proper divisors (1).

75065231 is an equidigital number, since it uses as much as digits as its factorization.

75065231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 75065231 is about 8664.0193328501. The cubic root of 75065231 is about 421.8385593472.

The spelling of 75065231 in words is "seventy-five million, sixty-five thousand, two hundred thirty-one".