182112421 has 4 divisors (see below), whose sum is σ = 182205612. Its totient is φ = 182019232.

The previous prime is 182112407. The next prime is 182112457. The reversal of 182112421 is 124211281.

182112421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 59213025 + 122899396 = 7695^2 + 11086^2 .

It is a cyclic number.

It is not a de Polignac number, because 182112421 - 2¹⁹ = 181588133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 182112392 and 182112401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (182112461) 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, 43600 + ... + 47593.

It is an arithmetic number, because the mean of its divisors is an integer number (45551403).

Almost surely, 2^182112421 is an apocalyptic number.

It is an amenable number.

182112421 is a deficient number, since it is larger than the sum of its proper divisors (93191).

182112421 is an equidigital number, since it uses as much as digits as its factorization.

182112421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93190.

The product of its digits is 256, while the sum is 22.

The square root of 182112421 is about 13494.9035194773. The cubic root of 182112421 is about 566.8217709599.

The spelling of 182112421 in words is "one hundred eighty-two million, one hundred twelve thousand, four hundred twenty-one".