182056421 has 2 divisors, whose sum is σ = 182056422. Its totient is φ = 182056420.

The previous prime is 182056411. The next prime is 182056471. The reversal of 182056421 is 124650281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170015521 + 12040900 = 13039^2 + 3470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-182056421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (182056411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91028210 + 91028211.

It is an arithmetic number, because the mean of its divisors is an integer number (91028211).

Almost surely, 2^182056421 is an apocalyptic number.

It is an amenable number.

182056421 is a deficient number, since it is larger than the sum of its proper divisors (1).

182056421 is an equidigital number, since it uses as much as digits as its factorization.

182056421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 182056421 is about 13492.8285025787. The cubic root of 182056421 is about 566.7636653254.

The spelling of 182056421 in words is "one hundred eighty-two million, fifty-six thousand, four hundred twenty-one".