1373145 has 16 divisors (see below), whose sum is σ = 2268672. Its totient is φ = 708480.

The previous prime is 1373137. The next prime is 1373147. The reversal of 1373145 is 5413731.

It is not a de Polignac number, because 1373145 - 2³ = 1373137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1373147) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1012 + ... + 1941.

It is an arithmetic number, because the mean of its divisors is an integer number (141792).

2^1373145 is an apocalyptic number.

1373145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1373145 is a deficient number, since it is larger than the sum of its proper divisors (895527).

1373145 is a wasteful number, since it uses less digits than its factorization.

1373145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992.

The product of its digits is 1260, while the sum is 24.

The square root of 1373145 is about 1171.8126983439. The cubic root of 1373145 is about 111.1489761687.

Adding to 1373145 its reverse (5413731), we get a palindrome (6786876).

The spelling of 1373145 in words is "one million, three hundred seventy-three thousand, one hundred forty-five".