1854145 has 12 divisors (see below), whose sum is σ = 2329236. Its totient is φ = 1416800.

The previous prime is 1854131. The next prime is 1854157. The reversal of 1854145 is 5414581.

It can be written as a sum of positive squares in 2 ways, for example, as 1168561 + 685584 = 1081^2 + 828^2 .

It is not a de Polignac number, because 1854145 - 2⁵ = 1854113 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

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, 2295 + ... + 2995.

It is an arithmetic number, because the mean of its divisors is an integer number (194103).

2^1854145 is an apocalyptic number.

It is an amenable number.

1854145 is a deficient number, since it is larger than the sum of its proper divisors (475091).

1854145 is an equidigital number, since it uses as much as digits as its factorization.

1854145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 729 counting only the distinct ones).

The product of its digits is 3200, while the sum is 28.

The square root of 1854145 is about 1361.6699306366. The cubic root of 1854145 is about 122.8517172267.

The spelling of 1854145 in words is "one million, eight hundred fifty-four thousand, one hundred forty-five".