125243445 has 16 divisors (see below), whose sum is σ = 200528640. Its totient is φ = 66750144.

The previous prime is 125243423. The next prime is 125243473. The reversal of 125243445 is 544342521.

It is not a de Polignac number, because 125243445 - 2⁸ = 125243189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38596 + ... + 41714.

It is an arithmetic number, because the mean of its divisors is an integer number (12533040).

Almost surely, 2^125243445 is an apocalyptic number.

125243445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125243445 is a deficient number, since it is larger than the sum of its proper divisors (75285195).

125243445 is a wasteful number, since it uses less digits than its factorization.

125243445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5804.

The product of its digits is 19200, while the sum is 30.

The square root of 125243445 is about 11191.2217831656. The cubic root of 125243445 is about 500.3243828394.

Adding to 125243445 its reverse (544342521), we get a palindrome (669585966).

The spelling of 125243445 in words is "one hundred twenty-five million, two hundred forty-three thousand, four hundred forty-five".