12611518 has 32 divisors (see below), whose sum is σ = 20956320. Its totient is φ = 5667840.

The previous prime is 12611483. The next prime is 12611519. The reversal of 12611518 is 81511621.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12611492 and 12611501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12611519) 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, 115648 + ... + 115756.

It is an arithmetic number, because the mean of its divisors is an integer number (654885).

Almost surely, 2^12611518 is an apocalyptic number.

12611518 is a deficient number, since it is larger than the sum of its proper divisors (8344802).

12611518 is a wasteful number, since it uses less digits than its factorization.

12611518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252.

The product of its digits is 480, while the sum is 25.

The square root of 12611518 is about 3551.2699137069. The cubic root of 12611518 is about 232.7675603213.

The spelling of 12611518 in words is "twelve million, six hundred eleven thousand, five hundred eighteen".