12616545 has 8 divisors (see below), whose sum is σ = 20186496. Its totient is φ = 6728816.

The previous prime is 12616543. The next prime is 12616547. The reversal of 12616545 is 54561621.

It is an interprime number because it is at equal distance from previous prime (12616543) and next prime (12616547).

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

It is a cyclic number.

It is not a de Polignac number, because 12616545 - 2¹ = 12616543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12616543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420537 + ... + 420566.

It is an arithmetic number, because the mean of its divisors is an integer number (2523312).

Almost surely, 2^12616545 is an apocalyptic number.

12616545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12616545 is a deficient number, since it is larger than the sum of its proper divisors (7569951).

12616545 is an equidigital number, since it uses as much as digits as its factorization.

12616545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841111.

The product of its digits is 7200, while the sum is 30.

The square root of 12616545 is about 3551.9776181727. The cubic root of 12616545 is about 232.7984835638.

The spelling of 12616545 in words is "twelve million, six hundred sixteen thousand, five hundred forty-five".