12545667 has 6 divisors (see below), whose sum is σ = 18121532. Its totient is φ = 8363772.

The previous prime is 12545647. The next prime is 12545671. The reversal of 12545667 is 76654521.

It is a happy number.

It is not a de Polignac number, because 12545667 - 2⁸ = 12545411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12545647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 696973 + ... + 696990.

Almost surely, 2^12545667 is an apocalyptic number.

12545667 is a deficient number, since it is larger than the sum of its proper divisors (5575865).

12545667 is a wasteful number, since it uses less digits than its factorization.

12545667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393969 (or 1393966 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 12545667 is about 3541.9863071446. The cubic root of 12545667 is about 232.3617214524.

The spelling of 12545667 in words is "twelve million, five hundred forty-five thousand, six hundred sixty-seven".