15490039 has 2 divisors, whose sum is σ = 15490040. Its totient is φ = 15490038.

The previous prime is 15490003. The next prime is 15490081. The reversal of 15490039 is 93009451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15490039 - 2¹¹ = 15487991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15490639) 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, 7745019 + 7745020.

It is an arithmetic number, because the mean of its divisors is an integer number (7745020).

Almost surely, 2^15490039 is an apocalyptic number.

15490039 is a deficient number, since it is larger than the sum of its proper divisors (1).

15490039 is an equidigital number, since it uses as much as digits as its factorization.

15490039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 15490039 is about 3935.7386854312. The cubic root of 15490039 is about 249.2781255956.

The spelling of 15490039 in words is "fifteen million, four hundred ninety thousand, thirty-nine".