15480497 has 4 divisors (see below), whose sum is σ = 16295280. Its totient is φ = 14665716.

The previous prime is 15480463. The next prime is 15480499. The reversal of 15480497 is 79408451.

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, and also an emirpimes, since its reverse is a distinct semiprime: 79408451 = 73 ⋅1087787.

It is a cyclic number.

It is not a de Polignac number, because 15480497 - 2⁶ = 15480433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15480497.

It is not an unprimeable number, because it can be changed into a prime (15480499) 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, 407363 + ... + 407400.

It is an arithmetic number, because the mean of its divisors is an integer number (4073820).

Almost surely, 2^15480497 is an apocalyptic number.

It is an amenable number.

15480497 is a deficient number, since it is larger than the sum of its proper divisors (814783).

15480497 is an equidigital number, since it uses as much as digits as its factorization.

15480497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814782.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 15480497 is about 3934.5262738988. The cubic root of 15480497 is about 249.2269292438.

The spelling of 15480497 in words is "fifteen million, four hundred eighty thousand, four hundred ninety-seven".