15090494 has 4 divisors (see below), whose sum is σ = 22635744. Its totient is φ = 7545246.

The previous prime is 15090457. The next prime is 15090497. The reversal of 15090494 is 49409051.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 15090494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15090497) 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, 3772622 + ... + 3772625.

It is an arithmetic number, because the mean of its divisors is an integer number (5658936).

Almost surely, 2^15090494 is an apocalyptic number.

15090494 is a deficient number, since it is larger than the sum of its proper divisors (7545250).

15090494 is an equidigital number, since it uses as much as digits as its factorization.

15090494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7545249.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 15090494 is about 3884.6485040477. The cubic root of 15090494 is about 247.1161631861.

The spelling of 15090494 in words is "fifteen million, ninety thousand, four hundred ninety-four".