182121510161 has 2 divisors, whose sum is σ = 182121510162. Its totient is φ = 182121510160.

The previous prime is 182121510101. The next prime is 182121510341. The reversal of 182121510161 is 161015121281.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115528611025 + 66592899136 = 339895^2 + 258056^2 .

It is a cyclic number.

It is not a de Polignac number, because 182121510161 - 2³⁴ = 164941640977 is a prime.

It is not a weakly prime, because it can be changed into another prime (182121510101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91060755080 + 91060755081.

It is an arithmetic number, because the mean of its divisors is an integer number (91060755081).

Almost surely, 2^182121510161 is an apocalyptic number.

It is an amenable number.

182121510161 is a deficient number, since it is larger than the sum of its proper divisors (1).

182121510161 is an equidigital number, since it uses as much as digits as its factorization.

182121510161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 29.

The spelling of 182121510161 in words is "one hundred eighty-two billion, one hundred twenty-one million, five hundred ten thousand, one hundred sixty-one".