1813489601 has 16 divisors (see below), whose sum is σ = 2262574080. Its totient is φ = 1412108880.

The previous prime is 1813489537. The next prime is 1813489619. The reversal of 1813489601 is 1069843181.

It is not a de Polignac number, because 1813489601 - 2⁶ = 1813489537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1813489631) 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, 112490 + ... + 127596.

It is an arithmetic number, because the mean of its divisors is an integer number (141410880).

Almost surely, 2^1813489601 is an apocalyptic number.

1813489601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1813489601 is a deficient number, since it is larger than the sum of its proper divisors (449084479).

1813489601 is a wasteful number, since it uses less digits than its factorization.

1813489601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16684.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 1813489601 is about 42585.0866031760. The cubic root of 1813489601 is about 1219.4715979673.

The spelling of 1813489601 in words is "one billion, eight hundred thirteen million, four hundred eighty-nine thousand, six hundred one".