12545201445 has 32 divisors (see below), whose sum is σ = 23021487360. Its totient is φ = 5714526720.

The previous prime is 12545201399. The next prime is 12545201477. The reversal of 12545201445 is 54410254521.

It is a happy number.

It is not a de Polignac number, because 12545201445 - 2⁹ = 12545200933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183090 + ... + 242099.

It is an arithmetic number, because the mean of its divisors is an integer number (719421480).

Almost surely, 2^12545201445 is an apocalyptic number.

12545201445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12545201445 is a deficient number, since it is larger than the sum of its proper divisors (10476285915).

12545201445 is a wasteful number, since it uses less digits than its factorization.

12545201445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425485.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 12545201445 its reverse (54410254521), we get a palindrome (66955455966).

The spelling of 12545201445 in words is "twelve billion, five hundred forty-five million, two hundred one thousand, four hundred forty-five".