1814882117 has 4 divisors (see below), whose sum is σ = 1821434316. Its totient is φ = 1808329920.

The previous prime is 1814882101. The next prime is 1814882119. The reversal of 1814882117 is 7112884181.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 150160516 + 1664721601 = 12254^2 + 40801^2 .

It is a cyclic number.

It is not a de Polignac number, because 1814882117 - 2⁴ = 1814882101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1814882119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3275684 + ... + 3276237.

It is an arithmetic number, because the mean of its divisors is an integer number (455358579).

Almost surely, 2^1814882117 is an apocalyptic number.

It is an amenable number.

1814882117 is a deficient number, since it is larger than the sum of its proper divisors (6552199).

1814882117 is an equidigital number, since it uses as much as digits as its factorization.

1814882117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6552198.

The product of its digits is 28672, while the sum is 41.

The square root of 1814882117 is about 42601.4332740109. The cubic root of 1814882117 is about 1219.7836481440.

The spelling of 1814882117 in words is "one billion, eight hundred fourteen million, eight hundred eighty-two thousand, one hundred seventeen".