1841145 has 8 divisors (see below), whose sum is σ = 2945856. Its totient is φ = 981936.

The previous prime is 1841141. The next prime is 1841153. The reversal of 1841145 is 5411481.

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

It is not a de Polignac number, because 1841145 - 2² = 1841141 is a prime.

It is a super-2 number, since 2×1841145² = 6779629822050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1841141) 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 7 ways as a sum of consecutive naturals, for example, 61357 + ... + 61386.

It is an arithmetic number, because the mean of its divisors is an integer number (368232).

2^1841145 is an apocalyptic number.

1841145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1841145 is a deficient number, since it is larger than the sum of its proper divisors (1104711).

1841145 is a wasteful number, since it uses less digits than its factorization.

1841145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122751.

The product of its digits is 640, while the sum is 24.

The square root of 1841145 is about 1356.8879835860. The cubic root of 1841145 is about 122.5639260960.

The spelling of 1841145 in words is "one million, eight hundred forty-one thousand, one hundred forty-five".