15494113 has 4 divisors (see below), whose sum is σ = 15503620. Its totient is φ = 15484608.

The previous prime is 15494077. The next prime is 15494137. The reversal of 15494113 is 31149451.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 13162384 + 2331729 = 3628^2 + 1527^2 .

It is a cyclic number.

It is not a de Polignac number, because 15494113 - 2⁹ = 15493601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15494153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1620 + ... + 5797.

It is an arithmetic number, because the mean of its divisors is an integer number (3875905).

Almost surely, 2^15494113 is an apocalyptic number.

It is an amenable number.

15494113 is a deficient number, since it is larger than the sum of its proper divisors (9507).

15494113 is an equidigital number, since it uses as much as digits as its factorization.

15494113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9506.

The product of its digits is 2160, while the sum is 28.

The square root of 15494113 is about 3936.2562162542. The cubic root of 15494113 is about 249.2999777047.

The spelling of 15494113 in words is "fifteen million, four hundred ninety-four thousand, one hundred thirteen".