15480223 has 4 divisors (see below), whose sum is σ = 16887528. Its totient is φ = 14072920.

The previous prime is 15480211. The next prime is 15480233. The reversal of 15480223 is 32208451.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15480223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15480203) 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, 703636 + ... + 703657.

It is an arithmetic number, because the mean of its divisors is an integer number (4221882).

Almost surely, 2^15480223 is an apocalyptic number.

15480223 is a deficient number, since it is larger than the sum of its proper divisors (1407305).

15480223 is a wasteful number, since it uses less digits than its factorization.

15480223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407304.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 15480223 is about 3934.4914537968. The cubic root of 15480223 is about 249.2254588220.

Adding to 15480223 its reverse (32208451), we get a palindrome (47688674).

It can be divided in two parts, 154802 and 23, that multiplied together give a triangular number (3560446 = T₂₆₆₈).

The spelling of 15480223 in words is "fifteen million, four hundred eighty thousand, two hundred twenty-three".