182020091 has 8 divisors (see below), whose sum is σ = 207201024. Its totient is φ = 158278120.

The previous prime is 182020063. The next prime is 182020093. The reversal of 182020091 is 190020281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 182020091 - 2²² = 177825787 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (182020093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359471 + ... + 359976.

It is an arithmetic number, because the mean of its divisors is an integer number (25900128).

Almost surely, 2^182020091 is an apocalyptic number.

182020091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

182020091 is a deficient number, since it is larger than the sum of its proper divisors (25180933).

182020091 is a wasteful number, since it uses less digits than its factorization.

182020091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719481.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 182020091 is about 13491.4821646845. The cubic root of 182020091 is about 566.7259629223.

The spelling of 182020091 in words is "one hundred eighty-two million, twenty thousand, ninety-one".