15494449 has 4 divisors (see below), whose sum is σ = 15526000. Its totient is φ = 15462900.

The previous prime is 15494431. The next prime is 15494461. The reversal of 15494449 is 94449451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15494449 - 2⁷ = 15494321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15494849) 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 in 3 ways as a sum of consecutive naturals, for example, 15027 + ... + 16024.

It is an arithmetic number, because the mean of its divisors is an integer number (3881500).

Almost surely, 2^15494449 is an apocalyptic number.

It is an amenable number.

15494449 is a deficient number, since it is larger than the sum of its proper divisors (31551).

15494449 is an equidigital number, since it uses as much as digits as its factorization.

15494449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31550.

The product of its digits is 103680, while the sum is 40.

The square root of 15494449 is about 3936.2988961714. The cubic root of 15494449 is about 249.3017797695.

The spelling of 15494449 in words is "fifteen million, four hundred ninety-four thousand, four hundred forty-nine".