15021454345 has 8 divisors (see below), whose sum is σ = 18034288776. Its totient is φ = 12011467776.

The previous prime is 15021454319. The next prime is 15021454387. The reversal of 15021454345 is 54345412051.

It can be written as a sum of positive squares in 4 ways, for example, as 30880249 + 14990574096 = 5557^2 + 122436^2 .

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 15021454345 - 2²³ = 15013065737 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 15021454345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 700342 + ... + 721471.

It is an arithmetic number, because the mean of its divisors is an integer number (2254286097).

Almost surely, 2^15021454345 is an apocalyptic number.

It is an amenable number.

15021454345 is a deficient number, since it is larger than the sum of its proper divisors (3012834431).

15021454345 is a wasteful number, since it uses less digits than its factorization.

15021454345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423931.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 15021454345 its reverse (54345412051), we get a palindrome (69366866396).

The spelling of 15021454345 in words is "fifteen billion, twenty-one million, four hundred fifty-four thousand, three hundred forty-five".