75281023 has 2 divisors, whose sum is σ = 75281024. Its totient is φ = 75281022.

The previous prime is 75280987. The next prime is 75281033. The reversal of 75281023 is 32018257.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75281023 - 2¹³ = 75272831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75280982 and 75281000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75281033) 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, 37640511 + 37640512.

It is an arithmetic number, because the mean of its divisors is an integer number (37640512).

Almost surely, 2^75281023 is an apocalyptic number.

75281023 is a deficient number, since it is larger than the sum of its proper divisors (1).

75281023 is an equidigital number, since it uses as much as digits as its factorization.

75281023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 75281023 is about 8676.4637381827. The cubic root of 75281023 is about 422.2423960993.

The spelling of 75281023 in words is "seventy-five million, two hundred eighty-one thousand, twenty-three".