12915078 has 32 divisors (see below), whose sum is σ = 28546560. Its totient is φ = 3862560.

The previous prime is 12915073. The next prime is 12915101. The reversal of 12915078 is 87051921.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12915073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3976 + ... + 6452.

It is an arithmetic number, because the mean of its divisors is an integer number (892080).

Almost surely, 2^12915078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12915078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14273280).

12915078 is an abundant number, since it is smaller than the sum of its proper divisors (15631482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12915078 is a wasteful number, since it uses less digits than its factorization.

12915078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 12915078 is about 3593.7554173872. The cubic root of 12915078 is about 234.6203497209.

Adding to 12915078 its reverse (87051921), we get a palindrome (99966999).

The spelling of 12915078 in words is "twelve million, nine hundred fifteen thousand, seventy-eight".