12617481 has 16 divisors (see below), whose sum is σ = 17532288. Its totient is φ = 8064000.

The previous prime is 12617477. The next prime is 12617483. The reversal of 12617481 is 18471621.

It is not a de Polignac number, because 12617481 - 2² = 12617477 is a prime.

It is a super-2 number, since 2×12617481² = 318401653570722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12617483) 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, 7081 + ... + 8681.

It is an arithmetic number, because the mean of its divisors is an integer number (1095768).

Almost surely, 2^12617481 is an apocalyptic number.

It is an amenable number.

12617481 is a deficient number, since it is larger than the sum of its proper divisors (4914807).

12617481 is a wasteful number, since it uses less digits than its factorization.

12617481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712.

The product of its digits is 2688, while the sum is 30.

The square root of 12617481 is about 3552.1093733161. The cubic root of 12617481 is about 232.8042403958.

The spelling of 12617481 in words is "twelve million, six hundred seventeen thousand, four hundred eighty-one".