12545470 has 24 divisors (see below), whose sum is σ = 26269704. Its totient is φ = 4301136.

The previous prime is 12545459. The next prime is 12545521. The reversal of 12545470 is 7454521.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12312 + ... + 13291.

It is an arithmetic number, because the mean of its divisors is an integer number (1094571).

Almost surely, 2^12545470 is an apocalyptic number.

12545470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12545470 is an abundant number, since it is smaller than the sum of its proper divisors (13724234).

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

12545470 is a wasteful number, since it uses less digits than its factorization.

12545470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25624 (or 25617 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 12545470 is about 3541.9584977806. The cubic root of 12545470 is about 232.3605052157.

Adding to 12545470 its reverse (7454521), we get a palindrome (19999991).

It can be divided in two parts, 1254 and 5470, that added together give a square (6724 = 82²).

The spelling of 12545470 in words is "twelve million, five hundred forty-five thousand, four hundred seventy".