15495481 has 2 divisors, whose sum is σ = 15495482. Its totient is φ = 15495480.

The previous prime is 15495479. The next prime is 15495511. The reversal of 15495481 is 18459451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10725625 + 4769856 = 3275^2 + 2184^2 .

It is a cyclic number.

It is not a de Polignac number, because 15495481 - 2¹ = 15495479 is a prime.

It is a super-2 number, since 2×15495481² = 480219862842722, which contains 22 as substring.

Together with 15495479, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 15495481.

It is not a weakly prime, because it can be changed into another prime (15495401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7747740 + 7747741.

It is an arithmetic number, because the mean of its divisors is an integer number (7747741).

Almost surely, 2^15495481 is an apocalyptic number.

It is an amenable number.

15495481 is a deficient number, since it is larger than the sum of its proper divisors (1).

15495481 is an equidigital number, since it uses as much as digits as its factorization.

15495481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 37.

The square root of 15495481 is about 3936.4299815950. The cubic root of 15495481 is about 249.3073145199.

The spelling of 15495481 in words is "fifteen million, four hundred ninety-five thousand, four hundred eighty-one".