182820011 has 4 divisors (see below), whose sum is σ = 199440024. Its totient is φ = 166200000.

The previous prime is 182820007. The next prime is 182820049. The reversal of 182820011 is 110028281.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110028281 = 11 ⋅10002571.

It is a cyclic number.

It is not a de Polignac number, because 182820011 - 2² = 182820007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (182720011) 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, 8309990 + ... + 8310011.

It is an arithmetic number, because the mean of its divisors is an integer number (49860006).

Almost surely, 2^182820011 is an apocalyptic number.

182820011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

182820011 is a deficient number, since it is larger than the sum of its proper divisors (16620013).

182820011 is a wasteful number, since it uses less digits than its factorization.

182820011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16620012.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 182820011 is about 13521.0950370153. The cubic root of 182820011 is about 567.5549427680.

Adding to 182820011 its reverse (110028281), we get a palindrome (292848292).

The spelling of 182820011 in words is "one hundred eighty-two million, eight hundred twenty thousand, eleven".