163060421 has 2 divisors, whose sum is σ = 163060422. Its totient is φ = 163060420.

The previous prime is 163060351. The next prime is 163060423. The reversal of 163060421 is 124060361.

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 + 12040900 = 12289^2 + 3470^2 .

It is a cyclic number.

It is not a de Polignac number, because 163060421 - 2²² = 158866117 is a prime.

Together with 163060423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163060423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81530210 + 81530211.

It is an arithmetic number, because the mean of its divisors is an integer number (81530211).

Almost surely, 2^163060421 is an apocalyptic number.

It is an amenable number.

163060421 is a deficient number, since it is larger than the sum of its proper divisors (1).

163060421 is an equidigital number, since it uses as much as digits as its factorization.

163060421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 163060421 is about 12769.5113845440. The cubic root of 163060421 is about 546.3230443055.

The spelling of 163060421 in words is "one hundred sixty-three million, sixty thousand, four hundred twenty-one".