15450440223 has 8 divisors (see below), whose sum is σ = 20678917248. Its totient is φ = 10261128344.

The previous prime is 15450440189. The next prime is 15450440231. The reversal of 15450440223 is 32204405451.

15450440223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15450440223 - 2⁸ = 15450439967 is a prime.

It is a super-2 number, since 2×15450440223² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15450440263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9790365 + ... + 9791942.

It is an arithmetic number, because the mean of its divisors is an integer number (2584864656).

Almost surely, 2^15450440223 is an apocalyptic number.

15450440223 is a deficient number, since it is larger than the sum of its proper divisors (5228477025).

15450440223 is a wasteful number, since it uses less digits than its factorization.

15450440223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19582573.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 15450440223 its reverse (32204405451), we get a palindrome (47654845674).

The spelling of 15450440223 in words is "fifteen billion, four hundred fifty million, four hundred forty thousand, two hundred twenty-three".