1813603086 has 24 divisors (see below), whose sum is σ = 4136288520. Its totient is φ = 572716656.

The previous prime is 1813603049. The next prime is 1813603087. The reversal of 1813603086 is 6803063181.

It is a self number, because there is not a number n which added to its sum of digits gives 1813603086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813603087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2651125 + ... + 2651808.

It is an arithmetic number, because the mean of its divisors is an integer number (172345355).

Almost surely, 2^1813603086 is an apocalyptic number.

1813603086 is an abundant number, since it is smaller than the sum of its proper divisors (2322685434).

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

1813603086 is a wasteful number, since it uses less digits than its factorization.

1813603086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5302960 (or 5302957 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1813603086 is about 42586.4190323629. The cubic root of 1813603086 is about 1219.4970349016.

The spelling of 1813603086 in words is "one billion, eight hundred thirteen million, six hundred three thousand, eighty-six".