15040489 has 2 divisors, whose sum is σ = 15040490. Its totient is φ = 15040488.

The previous prime is 15040469. The next prime is 15040523. The reversal of 15040489 is 98404051.

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., 7884864 + 7155625 = 2808^2 + 2675^2 .

It is a cyclic number.

It is not a de Polignac number, because 15040489 - 2¹⁵ = 15007721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15040489.

It is not a weakly prime, because it can be changed into another prime (15040429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7520244 + 7520245.

It is an arithmetic number, because the mean of its divisors is an integer number (7520245).

Almost surely, 2^15040489 is an apocalyptic number.

It is an amenable number.

15040489 is a deficient number, since it is larger than the sum of its proper divisors (1).

15040489 is an equidigital number, since it uses as much as digits as its factorization.

15040489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 15040489 is about 3878.2069310443. The cubic root of 15040489 is about 246.8429068787.

The spelling of 15040489 in words is "fifteen million, forty thousand, four hundred eighty-nine".