75271241 has 2 divisors, whose sum is σ = 75271242. Its totient is φ = 75271240.

The previous prime is 75271237. The next prime is 75271243. The reversal of 75271241 is 14217257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70627216 + 4644025 = 8404^2 + 2155^2 .

It is a cyclic number.

It is not a de Polignac number, because 75271241 - 2² = 75271237 is a prime.

Together with 75271243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75271243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37635620 + 37635621.

It is an arithmetic number, because the mean of its divisors is an integer number (37635621).

Almost surely, 2^75271241 is an apocalyptic number.

It is an amenable number.

75271241 is a deficient number, since it is larger than the sum of its proper divisors (1).

75271241 is an equidigital number, since it uses as much as digits as its factorization.

75271241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3920, while the sum is 29.

The square root of 75271241 is about 8675.9000109499. The cubic root of 75271241 is about 422.2241066116.

Adding to 75271241 its reverse (14217257), we get a palindrome (89488498).

The spelling of 75271241 in words is "seventy-five million, two hundred seventy-one thousand, two hundred forty-one".