1373345 has 16 divisors (see below), whose sum is σ = 1772928. Its totient is φ = 1017600.

The previous prime is 1373341. The next prime is 1373347. The reversal of 1373345 is 5433731.

1373345 = 56² + 57² + ... + 162².

It is not a de Polignac number, because 1373345 - 2² = 1373341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9020 + ... + 9170.

It is an arithmetic number, because the mean of its divisors is an integer number (110808).

2^1373345 is an apocalyptic number.

It is an amenable number.

1373345 is a deficient number, since it is larger than the sum of its proper divisors (399583).

1373345 is a wasteful number, since it uses less digits than its factorization.

1373345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280.

The product of its digits is 3780, while the sum is 26.

The square root of 1373345 is about 1171.8980331070. The cubic root of 1373345 is about 111.1543722282.

The spelling of 1373345 in words is "one million, three hundred seventy-three thousand, three hundred forty-five".