75134887 has 2 divisors, whose sum is σ = 75134888. Its totient is φ = 75134886.

The previous prime is 75134881. The next prime is 75134893. The reversal of 75134887 is 78843157.

It is a balanced prime because it is at equal distance from previous prime (75134881) and next prime (75134893).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75134887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75134881) 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, 37567443 + 37567444.

It is an arithmetic number, because the mean of its divisors is an integer number (37567444).

Almost surely, 2^75134887 is an apocalyptic number.

75134887 is a deficient number, since it is larger than the sum of its proper divisors (1).

75134887 is an equidigital number, since it uses as much as digits as its factorization.

75134887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 43.

The square root of 75134887 is about 8668.0382440319. The cubic root of 75134887 is about 421.9689992426.

The spelling of 75134887 in words is "seventy-five million, one hundred thirty-four thousand, eight hundred eighty-seven".