1803745069 has 16 divisors (see below), whose sum is σ = 2174999680. Its totient is φ = 1461265920.

The previous prime is 1803745063. The next prime is 1803745087. The reversal of 1803745069 is 9605473081.

It is a cyclic number.

It is not a de Polignac number, because 1803745069 - 2³ = 1803745061 is a prime.

It is a super-2 number, since 2×1803745069² = 6506992547883629522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1803745061) 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, 41929 + ... + 73249.

It is an arithmetic number, because the mean of its divisors is an integer number (135937480).

Almost surely, 2^1803745069 is an apocalyptic number.

1803745069 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1803745069 is a deficient number, since it is larger than the sum of its proper divisors (371254611).

1803745069 is a wasteful number, since it uses less digits than its factorization.

1803745069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31780.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 1803745069 is about 42470.5199991712. The cubic root of 1803745069 is about 1217.2834541865.

The spelling of 1803745069 in words is "one billion, eight hundred three million, seven hundred forty-five thousand, sixty-nine".