1801150 has 48 divisors (see below), whose sum is σ = 3843504. Its totient is φ = 622080.

The previous prime is 1801117. The next prime is 1801187. The reversal of 1801150 is 511081.

1801150 = 13² + 14² + ... + 175².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10969 + ... + 11131.

It is an arithmetic number, because the mean of its divisors is an integer number (80073).

2^1801150 is an apocalyptic number.

1801150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1801150 is an abundant number, since it is smaller than the sum of its proper divisors (2042354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1801150 is a wasteful number, since it uses less digits than its factorization.

1801150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1801150 is about 1342.0692977637. The cubic root of 1801150 is about 121.6699400716.

The spelling of 1801150 in words is "one million, eight hundred one thousand, one hundred fifty".