12915011 has 4 divisors (see below), whose sum is σ = 13016832. Its totient is φ = 12813192.

The previous prime is 12914953. The next prime is 12915013. The reversal of 12915011 is 11051921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12915011 - 2²² = 8720707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12915013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50720 + ... + 50973.

It is an arithmetic number, because the mean of its divisors is an integer number (3254208).

Almost surely, 2^12915011 is an apocalyptic number.

12915011 is a deficient number, since it is larger than the sum of its proper divisors (101821).

12915011 is a wasteful number, since it uses less digits than its factorization.

12915011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101820.

The product of its (nonzero) digits is 90, while the sum is 20.

The square root of 12915011 is about 3593.7460956501. The cubic root of 12915011 is about 234.6199440042.

Adding to 12915011 its reverse (11051921), we get a palindrome (23966932).

The spelling of 12915011 in words is "twelve million, nine hundred fifteen thousand, eleven".