13815301007236 has 27 divisors (see below), whose sum is σ = 25516471248261. Its totient is φ = 6544023046704.

The previous prime is 13815301007213. The next prime is 13815301007239. The reversal of 13815301007236 is 63270010351831.

It is a happy number.

The square root of 13815301007236 is 3716894.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8922109260100 + 4893191747136 = 2986990^2 + 2212056^2 .

It is a super-2 number, since 2×13815301007236² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13815301007239) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 141193066 + ... + 141290878.

Almost surely, 2^{13815301007236} is an apocalyptic number.

13815301007236 is the 3716894-th square number.

It is an amenable number.

13815301007236 is a deficient number, since it is larger than the sum of its proper divisors (11701170241025).

13815301007236 is an frugal number, since it uses more digits than its factorization.

13815301007236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195668 (or 97834 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 13815301007236 in words is "thirteen trillion, eight hundred fifteen billion, three hundred one million, seven thousand, two hundred thirty-six".