75675091 has 2 divisors, whose sum is σ = 75675092. Its totient is φ = 75675090.

The previous prime is 75675079. The next prime is 75675097. The reversal of 75675091 is 19057657.

It is a strong prime.

It is an emirp because it is prime and its reverse (19057657) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75675091 is a prime.

It is not a weakly prime, because it can be changed into another prime (75675097) 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, 37837545 + 37837546.

It is an arithmetic number, because the mean of its divisors is an integer number (37837546).

Almost surely, 2^75675091 is an apocalyptic number.

75675091 is a deficient number, since it is larger than the sum of its proper divisors (1).

75675091 is an equidigital number, since it uses as much as digits as its factorization.

75675091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 66150, while the sum is 40.

The square root of 75675091 is about 8699.1431187215. The cubic root of 75675091 is about 422.9778746110.

The spelling of 75675091 in words is "seventy-five million, six hundred seventy-five thousand, ninety-one".