1498681889 has 2 divisors, whose sum is σ = 1498681890. Its totient is φ = 1498681888.

The previous prime is 1498681883. The next prime is 1498681973. The reversal of 1498681889 is 9881868941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1361979025 + 136702864 = 36905^2 + 11692^2 .

It is a cyclic number.

It is not a de Polignac number, because 1498681889 - 2¹² = 1498677793 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1498681883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749340944 + 749340945.

It is an arithmetic number, because the mean of its divisors is an integer number (749340945).

Almost surely, 2^1498681889 is an apocalyptic number.

It is an amenable number.

1498681889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1498681889 is an equidigital number, since it uses as much as digits as its factorization.

1498681889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7962624, while the sum is 62.

The square root of 1498681889 is about 38712.8129822673. The cubic root of 1498681889 is about 1144.3788419719.

The spelling of 1498681889 in words is "one billion, four hundred ninety-eight million, six hundred eighty-one thousand, eight hundred eighty-nine".