1372443225 has 24 divisors (see below), whose sum is σ = 2324455392. Its totient is φ = 714115200.

The previous prime is 1372443217. The next prime is 1372443229. The reversal of 1372443225 is 5223442731.

It is not a de Polignac number, because 1372443225 - 2³ = 1372443217 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1372443229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220087 + ... + 226236.

It is an arithmetic number, because the mean of its divisors is an integer number (96852308).

Almost surely, 2^1372443225 is an apocalyptic number.

1372443225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1372443225 is a deficient number, since it is larger than the sum of its proper divisors (952012167).

1372443225 is a wasteful number, since it uses less digits than its factorization.

1372443225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446377 (or 446372 counting only the distinct ones).

The product of its digits is 40320, while the sum is 33.

The square root of 1372443225 is about 37046.5008469086. The cubic root of 1372443225 is about 1111.3003792487.

Adding to 1372443225 its reverse (5223442731), we get a palindrome (6595885956).

The spelling of 1372443225 in words is "one billion, three hundred seventy-two million, four hundred forty-three thousand, two hundred twenty-five".