1673145 has 12 divisors (see below), whose sum is σ = 2900196. Its totient is φ = 892320.

The previous prime is 1673137. The next prime is 1673167. The reversal of 1673145 is 5413761.

It can be written as a sum of positive squares in 2 ways, for example, as 558009 + 1115136 = 747^2 + 1056^2 .

It is not a de Polignac number, because 1673145 - 2³ = 1673137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18546 + ... + 18635.

It is an arithmetic number, because the mean of its divisors is an integer number (241683).

2^1673145 is an apocalyptic number.

1673145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1673145 is a deficient number, since it is larger than the sum of its proper divisors (1227051).

1673145 is a wasteful number, since it uses less digits than its factorization.

1673145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37192 (or 37189 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 1673145 is about 1293.5010630069. The cubic root of 1673145 is about 118.7165298100.

The spelling of 1673145 in words is "one million, six hundred seventy-three thousand, one hundred forty-five".