1810045 has 8 divisors (see below), whose sum is σ = 2179296. Its totient is φ = 1443216.

The previous prime is 1810043. The next prime is 1810057. The reversal of 1810045 is 5400181.

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 1810045 - 2¹ = 1810043 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 (1810043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2494 + ... + 3136.

It is an arithmetic number, because the mean of its divisors is an integer number (272412).

2^1810045 is an apocalyptic number.

It is an amenable number.

1810045 is a deficient number, since it is larger than the sum of its proper divisors (369251).

1810045 is an equidigital number, since it uses as much as digits as its factorization.

1810045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1810045 is about 1345.3791287217. The cubic root of 1810045 is about 121.8699007290.

It can be divided in two parts, 18100 and 45, that added together give a triangular number (18145 = T₁₉₀).

The spelling of 1810045 in words is "one million, eight hundred ten thousand, forty-five".