1372445 has 4 divisors (see below), whose sum is σ = 1646940. Its totient is φ = 1097952.

The previous prime is 1372421. The next prime is 1372451. The reversal of 1372445 is 5442731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 334084 + 1038361 = 578^2 + 1019^2 .

It is a cyclic number.

It is not a de Polignac number, because 1372445 - 2¹² = 1368349 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137240 + ... + 137249.

It is an arithmetic number, because the mean of its divisors is an integer number (411735).

2^1372445 is an apocalyptic number.

It is an amenable number.

1372445 is a deficient number, since it is larger than the sum of its proper divisors (274495).

1372445 is an equidigital number, since it uses as much as digits as its factorization.

1372445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274494.

The product of its digits is 3360, while the sum is 26.

The square root of 1372445 is about 1171.5139777228. The cubic root of 1372445 is about 111.1300858335.

The spelling of 1372445 in words is "one million, three hundred seventy-two thousand, four hundred forty-five".