75113447 has 2 divisors, whose sum is σ = 75113448. Its totient is φ = 75113446.

The previous prime is 75113417. The next prime is 75113453. The reversal of 75113447 is 74431157.

It is a strong prime.

It is an emirp because it is prime and its reverse (74431157) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75113447 - 2¹⁸ = 74851303 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75113417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37556723 + 37556724.

It is an arithmetic number, because the mean of its divisors is an integer number (37556724).

Almost surely, 2^75113447 is an apocalyptic number.

75113447 is a deficient number, since it is larger than the sum of its proper divisors (1).

75113447 is an equidigital number, since it uses as much as digits as its factorization.

75113447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 32.

The square root of 75113447 is about 8666.8014284394. The cubic root of 75113447 is about 421.9288586529.

The spelling of 75113447 in words is "seventy-five million, one hundred thirteen thousand, four hundred forty-seven".