1801145481 has 8 divisors (see below), whose sum is σ = 2446839360. Its totient is φ = 1178107632.

The previous prime is 1801145449. The next prime is 1801145497. The reversal of 1801145481 is 1845411081.

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

It is not a de Polignac number, because 1801145481 - 2⁵ = 1801145449 is a prime.

It is a super-2 number, since 2×1801145481² = 6488250087453442722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1801145431) 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, 5663821 + ... + 5664138.

It is an arithmetic number, because the mean of its divisors is an integer number (305854920).

Almost surely, 2^1801145481 is an apocalyptic number.

It is an amenable number.

1801145481 is a deficient number, since it is larger than the sum of its proper divisors (645693879).

1801145481 is a wasteful number, since it uses less digits than its factorization.

1801145481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11328015.

The product of its (nonzero) digits is 5120, while the sum is 33.

The square root of 1801145481 is about 42439.9043472061. The cubic root of 1801145481 is about 1216.6983831685.

The spelling of 1801145481 in words is "one billion, eight hundred one million, one hundred forty-five thousand, four hundred eighty-one".