75481963 has 2 divisors, whose sum is σ = 75481964. Its totient is φ = 75481962.

The previous prime is 75481951. The next prime is 75481969. The reversal of 75481963 is 36918457.

It is a strong prime.

It is an emirp because it is prime and its reverse (36918457) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75481963 - 2²¹ = 73384811 is a prime.

It is not a weakly prime, because it can be changed into another prime (75481969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37740981 + 37740982.

It is an arithmetic number, because the mean of its divisors is an integer number (37740982).

Almost surely, 2^75481963 is an apocalyptic number.

75481963 is a deficient number, since it is larger than the sum of its proper divisors (1).

75481963 is an equidigital number, since it uses as much as digits as its factorization.

75481963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 75481963 is about 8688.0356237760. The cubic root of 75481963 is about 422.6177452719.

The spelling of 75481963 in words is "seventy-five million, four hundred eighty-one thousand, nine hundred sixty-three".