12545771 has 8 divisors (see below), whose sum is σ = 14540544. Its totient is φ = 10601640.

The previous prime is 12545759. The next prime is 12545773. The reversal of 12545771 is 17754521.

12545771 is nontrivially palindromic in base 11.

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

It is not a de Polignac number, because 12545771 - 2¹⁰ = 12544747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12545773) 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, 12125 + ... + 13118.

It is an arithmetic number, because the mean of its divisors is an integer number (1817568).

Almost surely, 2^12545771 is an apocalyptic number.

12545771 is a deficient number, since it is larger than the sum of its proper divisors (1994773).

12545771 is an equidigital number, since it uses as much as digits as its factorization.

12545771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25321.

The product of its digits is 9800, while the sum is 32.

The square root of 12545771 is about 3542.0009881422. Note that the first 3 decimals coincide. The cubic root of 12545771 is about 232.3623635214.

The spelling of 12545771 in words is "twelve million, five hundred forty-five thousand, seven hundred seventy-one".