1373445 has 24 divisors (see below), whose sum is σ = 2486016. Its totient is φ = 700128.

The previous prime is 1373441. The next prime is 1373473. The reversal of 1373445 is 5443731.

It is not a de Polignac number, because 1373445 - 2² = 1373441 is a prime.

1373445 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373441) 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, 372 + ... + 1698.

It is an arithmetic number, because the mean of its divisors is an integer number (103584).

2^1373445 is an apocalyptic number.

1373445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1373445 is a deficient number, since it is larger than the sum of its proper divisors (1112571).

1373445 is a wasteful number, since it uses less digits than its factorization.

1373445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361 (or 1358 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 1373445 is about 1171.9406981584. The cubic root of 1373445 is about 111.1570700614.

The spelling of 1373445 in words is "one million, three hundred seventy-three thousand, four hundred forty-five".