1801803146 has 16 divisors (see below), whose sum is σ = 3175206048. Its totient is φ = 756001200.

The previous prime is 1801803119. The next prime is 1801803149. The reversal of 1801803146 is 6413081081.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1801803149) 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, 3149720 + ... + 3150291.

It is an arithmetic number, because the mean of its divisors is an integer number (198450378).

Almost surely, 2^1801803146 is an apocalyptic number.

1801803146 is a deficient number, since it is larger than the sum of its proper divisors (1373402902).

1801803146 is a wasteful number, since it uses less digits than its factorization.

1801803146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6300037.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1801803146 is about 42447.6518314029. The cubic root of 1801803146 is about 1216.8464523794.

The spelling of 1801803146 in words is "one billion, eight hundred one million, eight hundred three thousand, one hundred forty-six".