1548118489 has 2 divisors, whose sum is σ = 1548118490. Its totient is φ = 1548118488.

The previous prime is 1548118483. The next prime is 1548118501. The reversal of 1548118489 is 9848118451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1421893264 + 126225225 = 37708^2 + 11235^2 .

It is a cyclic number.

It is not a de Polignac number, because 1548118489 - 2²⁵ = 1514564057 is a prime.

It is not a weakly prime, because it can be changed into another prime (1548118483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 774059244 + 774059245.

It is an arithmetic number, because the mean of its divisors is an integer number (774059245).

Almost surely, 2^1548118489 is an apocalyptic number.

It is an amenable number.

1548118489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1548118489 is an equidigital number, since it uses as much as digits as its factorization.

1548118489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 368640, while the sum is 49.

The square root of 1548118489 is about 39346.1369005904. The cubic root of 1548118489 is about 1156.8260661800.

The spelling of 1548118489 in words is "one billion, five hundred forty-eight million, one hundred eighteen thousand, four hundred eighty-nine".