182716421 has 2 divisors, whose sum is σ = 182716422. Its totient is φ = 182716420.

The previous prime is 182716379. The next prime is 182716433. The reversal of 182716421 is 124617281.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151019521 + 31696900 = 12289^2 + 5630^2 .

It is a cyclic number.

It is not a de Polignac number, because 182716421 - 2¹⁰ = 182715397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (182716481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91358210 + 91358211.

It is an arithmetic number, because the mean of its divisors is an integer number (91358211).

Almost surely, 2^182716421 is an apocalyptic number.

It is an amenable number.

182716421 is a deficient number, since it is larger than the sum of its proper divisors (1).

182716421 is an equidigital number, since it uses as much as digits as its factorization.

182716421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 32.

The square root of 182716421 is about 13517.2638133610. The cubic root of 182716421 is about 567.4477259774.

The spelling of 182716421 in words is "one hundred eighty-two million, seven hundred sixteen thousand, four hundred twenty-one".