75189089 has 2 divisors, whose sum is σ = 75189090. Its totient is φ = 75189088.

The previous prime is 75189077. The next prime is 75189211. The reversal of 75189089 is 98098157.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73393489 + 1795600 = 8567^2 + 1340^2 .

It is an emirp because it is prime and its reverse (98098157) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75189089 is a prime.

It is not a weakly prime, because it can be changed into another prime (75189019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37594544 + 37594545.

It is an arithmetic number, because the mean of its divisors is an integer number (37594545).

Almost surely, 2^75189089 is an apocalyptic number.

It is an amenable number.

75189089 is a deficient number, since it is larger than the sum of its proper divisors (1).

75189089 is an equidigital number, since it uses as much as digits as its factorization.

75189089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 75189089 is about 8671.1642240244. The cubic root of 75189089 is about 422.0704437557.

The spelling of 75189089 in words is "seventy-five million, one hundred eighty-nine thousand, eighty-nine".