1374445 has 4 divisors (see below), whose sum is σ = 1649340. Its totient is φ = 1099552.

The previous prime is 1374437. The next prime is 1374473. The reversal of 1374445 is 5444731.

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 946729 + 427716 = 973^2 + 654^2 .

It is a cyclic number.

It is not a de Polignac number, because 1374445 - 2³ = 1374437 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137440 + ... + 137449.

It is an arithmetic number, because the mean of its divisors is an integer number (412335).

2^1374445 is an apocalyptic number.

It is an amenable number.

1374445 is a deficient number, since it is larger than the sum of its proper divisors (274895).

1374445 is an equidigital number, since it uses as much as digits as its factorization.

1374445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274894.

The product of its digits is 6720, while the sum is 28.

The square root of 1374445 is about 1172.3672632755. The cubic root of 1374445 is about 111.1840411944.

The spelling of 1374445 in words is "one million, three hundred seventy-four thousand, four hundred forty-five".