15213241217045 has 8 divisors (see below), whose sum is σ = 18255992748120. Its totient is φ = 12170524115200.

The previous prime is 15213241217029. The next prime is 15213241217101. The reversal of 15213241217045 is 54071214231251.

It can be written as a sum of positive squares in 4 ways, for example, as 165467527729 + 15047773689316 = 406777^2 + 3879146^2 .

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

It is not a de Polignac number, because 15213241217045 - 2⁴ = 15213241217029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7625000 + ... + 9411009.

It is an arithmetic number, because the mean of its divisors is an integer number (2281999093515).

Almost surely, 2^{15213241217045} is an apocalyptic number.

It is an amenable number.

15213241217045 is a deficient number, since it is larger than the sum of its proper divisors (3042751531075).

15213241217045 is a wasteful number, since it uses less digits than its factorization.

15213241217045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17214615.

The product of its (nonzero) digits is 67200, while the sum is 38.

Adding to 15213241217045 its reverse (54071214231251), we get a palindrome (69284455448296).

The spelling of 15213241217045 in words is "fifteen trillion, two hundred thirteen billion, two hundred forty-one million, two hundred seventeen thousand, forty-five".