75001973 has 2 divisors, whose sum is σ = 75001974. Its totient is φ = 75001972.

The previous prime is 75001967. The next prime is 75002003. The reversal of 75001973 is 37910057.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59336209 + 15665764 = 7703^2 + 3958^2 .

It is an emirp because it is prime and its reverse (37910057) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75001973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75001963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37500986 + 37500987.

It is an arithmetic number, because the mean of its divisors is an integer number (37500987).

Almost surely, 2^75001973 is an apocalyptic number.

It is an amenable number.

75001973 is a deficient number, since it is larger than the sum of its proper divisors (1).

75001973 is an equidigital number, since it uses as much as digits as its factorization.

75001973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6615, while the sum is 32.

The square root of 75001973 is about 8660.3679483034. The cubic root of 75001973 is about 421.7200306021.

The spelling of 75001973 in words is "seventy-five million, one thousand, nine hundred seventy-three".