1373745 has 8 divisors (see below), whose sum is σ = 2198016. Its totient is φ = 732656.

The previous prime is 1373717. The next prime is 1373761. The reversal of 1373745 is 5473731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1373745 - 2⁹ = 1373233 is a prime.

It is a Curzon number.

1373745 is a lucky 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 7 ways as a sum of consecutive naturals, for example, 45777 + ... + 45806.

It is an arithmetic number, because the mean of its divisors is an integer number (274752).

2^1373745 is an apocalyptic number.

1373745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1373745 is a deficient number, since it is larger than the sum of its proper divisors (824271).

1373745 is an equidigital number, since it uses as much as digits as its factorization.

1373745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91591.

The product of its digits is 8820, while the sum is 30.

The square root of 1373745 is about 1172.0686839942. The cubic root of 1373745 is about 111.1651627756.

The spelling of 1373745 in words is "one million, three hundred seventy-three thousand, seven hundred forty-five".