75134893 has 2 divisors, whose sum is σ = 75134894. Its totient is φ = 75134892.

The previous prime is 75134887. The next prime is 75134897. The reversal of 75134893 is 39843157.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51883209 + 23251684 = 7203^2 + 4822^2 .

It is an emirp because it is prime and its reverse (39843157) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75134893 is a prime.

It is a super-2 number, since 2×75134893² = 11290504292242898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75134897) 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, 37567446 + 37567447.

It is an arithmetic number, because the mean of its divisors is an integer number (37567447).

Almost surely, 2^75134893 is an apocalyptic number.

It is an amenable number.

75134893 is a deficient number, since it is larger than the sum of its proper divisors (1).

75134893 is an equidigital number, since it uses as much as digits as its factorization.

75134893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 75134893 is about 8668.0385901310. The cubic root of 75134893 is about 421.9690104749.

The spelling of 75134893 in words is "seventy-five million, one hundred thirty-four thousand, eight hundred ninety-three".