1850145 has 16 divisors (see below), whose sum is σ = 3229632. Its totient is φ = 896960.

The previous prime is 1850141. The next prime is 1850159. The reversal of 1850145 is 5410581.

It is not a de Polignac number, because 1850145 - 2² = 1850141 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1850141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5442 + ... + 5771.

It is an arithmetic number, because the mean of its divisors is an integer number (201852).

2^1850145 is an apocalyptic number.

1850145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1850145 is a deficient number, since it is larger than the sum of its proper divisors (1379487).

1850145 is a wasteful number, since it uses less digits than its factorization.

1850145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11232.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 1850145 is about 1360.2003528892. The cubic root of 1850145 is about 122.7633097813.

The spelling of 1850145 in words is "one million, eight hundred fifty thousand, one hundred forty-five".