75019489 has 2 divisors, whose sum is σ = 75019490. Its totient is φ = 75019488.

The previous prime is 75019421. The next prime is 75019493. The reversal of 75019489 is 98491057.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52056225 + 22963264 = 7215^2 + 4792^2 .

It is a cyclic number.

It is not a de Polignac number, because 75019489 - 2⁷ = 75019361 is a prime.

It is a super-2 number, since 2×75019489² = 11255847459642242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75019499) 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, 37509744 + 37509745.

It is an arithmetic number, because the mean of its divisors is an integer number (37509745).

Almost surely, 2^75019489 is an apocalyptic number.

It is an amenable number.

75019489 is a deficient number, since it is larger than the sum of its proper divisors (1).

75019489 is an equidigital number, since it uses as much as digits as its factorization.

75019489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 75019489 is about 8661.3791626969. The cubic root of 75019489 is about 421.7528576189.

The spelling of 75019489 in words is "seventy-five million, nineteen thousand, four hundred eighty-nine".