11215015145 has 8 divisors (see below), whose sum is σ = 14166335040. Its totient is φ = 8499800880.

The previous prime is 11215015139. The next prime is 11215015171. The reversal of 11215015145 is 54151051211.

It is a happy number.

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

It is not a de Polignac number, because 11215015145 - 2¹⁶ = 11214949609 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59026301 + ... + 59026490.

It is an arithmetic number, because the mean of its divisors is an integer number (1770791880).

Almost surely, 2^11215015145 is an apocalyptic number.

It is an amenable number.

11215015145 is a deficient number, since it is larger than the sum of its proper divisors (2951319895).

11215015145 is a wasteful number, since it uses less digits than its factorization.

11215015145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118052815.

The product of its (nonzero) digits is 1000, while the sum is 26.

Adding to 11215015145 its reverse (54151051211), we get a palindrome (65366066356).

The spelling of 11215015145 in words is "eleven billion, two hundred fifteen million, fifteen thousand, one hundred forty-five".