75321241 has 2 divisors, whose sum is σ = 75321242. Its totient is φ = 75321240.

The previous prime is 75321193. The next prime is 75321247. The reversal of 75321241 is 14212357.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55071241 + 20250000 = 7421^2 + 4500^2 .

It is a cyclic number.

It is not a de Polignac number, because 75321241 - 2¹⁷ = 75190169 is a prime.

It is not a weakly prime, because it can be changed into another prime (75321247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37660620 + 37660621.

It is an arithmetic number, because the mean of its divisors is an integer number (37660621).

Almost surely, 2^75321241 is an apocalyptic number.

It is an amenable number.

75321241 is a deficient number, since it is larger than the sum of its proper divisors (1).

75321241 is an equidigital number, since it uses as much as digits as its factorization.

75321241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 25.

The square root of 75321241 is about 8678.7810780086. The cubic root of 75321241 is about 422.3175753889.

Adding to 75321241 its reverse (14212357), we get a palindrome (89533598).

The spelling of 75321241 in words is "seventy-five million, three hundred twenty-one thousand, two hundred forty-one".