12545772 has 24 divisors (see below), whose sum is σ = 29430576. Its totient is φ = 4159488.

The previous prime is 12545759. The next prime is 12545773. The reversal of 12545772 is 27754521.

It is not an unprimeable number, because it can be changed into a prime (12545773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393 + ... + 5024.

It is an arithmetic number, because the mean of its divisors is an integer number (1226274).

Almost surely, 2^12545772 is an apocalyptic number.

12545772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12545772 is an abundant number, since it is smaller than the sum of its proper divisors (16884804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12545772 is a wasteful number, since it uses less digits than its factorization.

12545772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5617 (or 5615 counting only the distinct ones).

The product of its digits is 19600, while the sum is 33.

The square root of 12545772 is about 3542.0011293053. The cubic root of 12545772 is about 232.3623696951.

The spelling of 12545772 in words is "twelve million, five hundred forty-five thousand, seven hundred seventy-two".