1832200091 has 4 divisors (see below), whose sum is σ = 1834883352. Its totient is φ = 1829516832.

The previous prime is 1832200081. The next prime is 1832200127. The reversal of 1832200091 is 1900022381.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1832200091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1832200091.

It is not an unprimeable number, because it can be changed into a prime (1832200081) 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, 1340606 + ... + 1341971.

It is an arithmetic number, because the mean of its divisors is an integer number (458720838).

Almost surely, 2^1832200091 is an apocalyptic number.

1832200091 is a deficient number, since it is larger than the sum of its proper divisors (2683261).

1832200091 is an equidigital number, since it uses as much as digits as its factorization.

1832200091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683260.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1832200091 is about 42804.2064638512. The cubic root of 1832200091 is about 1223.6511803356.

The spelling of 1832200091 in words is "one billion, eight hundred thirty-two million, two hundred thousand, ninety-one".