15491053 has 2 divisors, whose sum is σ = 15491054. Its totient is φ = 15491052.

The previous prime is 15491039. The next prime is 15491093. The reversal of 15491053 is 35019451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15389929 + 101124 = 3923^2 + 318^2 .

It is a cyclic number.

It is not a de Polignac number, because 15491053 - 2¹³ = 15482861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15491093) 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, 7745526 + 7745527.

It is an arithmetic number, because the mean of its divisors is an integer number (7745527).

Almost surely, 2^15491053 is an apocalyptic number.

It is an amenable number.

15491053 is a deficient number, since it is larger than the sum of its proper divisors (1).

15491053 is an equidigital number, since it uses as much as digits as its factorization.

15491053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 15491053 is about 3935.8675028512. The cubic root of 15491053 is about 249.2835648439.

The spelling of 15491053 in words is "fifteen million, four hundred ninety-one thousand, fifty-three".