80147489 has 2 divisors, whose sum is σ = 80147490. Its totient is φ = 80147488.

The previous prime is 80147461. The next prime is 80147519. The reversal of 80147489 is 98474108.

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., 59290000 + 20857489 = 7700^2 + 4567^2 .

It is a cyclic number.

It is not a de Polignac number, because 80147489 - 2⁸ = 80147233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80147189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40073744 + 40073745.

It is an arithmetic number, because the mean of its divisors is an integer number (40073745).

Almost surely, 2^80147489 is an apocalyptic number.

It is an amenable number.

80147489 is a deficient number, since it is larger than the sum of its proper divisors (1).

80147489 is an equidigital number, since it uses as much as digits as its factorization.

80147489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 80147489 is about 8952.5129991528. The cubic root of 80147489 is about 431.1515716273.

The spelling of 80147489 in words is "eighty million, one hundred forty-seven thousand, four hundred eighty-nine".