75145223 has 2 divisors, whose sum is σ = 75145224. Its totient is φ = 75145222.

The previous prime is 75145201. The next prime is 75145241. The reversal of 75145223 is 32254157.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75145223 - 2¹² = 75141127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75145243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37572611 + 37572612.

It is an arithmetic number, because the mean of its divisors is an integer number (37572612).

Almost surely, 2^75145223 is an apocalyptic number.

75145223 is a deficient number, since it is larger than the sum of its proper divisors (1).

75145223 is an equidigital number, since it uses as much as digits as its factorization.

75145223 is an odious number, because the sum of its binary digits is odd.

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

The square root of 75145223 is about 8668.6344368649. The cubic root of 75145223 is about 421.9883478735.

The spelling of 75145223 in words is "seventy-five million, one hundred forty-five thousand, two hundred twenty-three".