181952642953 has 2 divisors, whose sum is σ = 181952642954. Its totient is φ = 181952642952.

The previous prime is 181952642923. The next prime is 181952642957. The reversal of 181952642953 is 359246259181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158815799289 + 23136843664 = 398517^2 + 152108^2 .

It is a cyclic number.

It is not a de Polignac number, because 181952642953 - 2⁹ = 181952642441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 181952642894 and 181952642903.

It is not a weakly prime, because it can be changed into another prime (181952642957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90976321476 + 90976321477.

It is an arithmetic number, because the mean of its divisors is an integer number (90976321477).

Almost surely, 2^181952642953 is an apocalyptic number.

It is an amenable number.

181952642953 is a deficient number, since it is larger than the sum of its proper divisors (1).

181952642953 is an equidigital number, since it uses as much as digits as its factorization.

181952642953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4665600, while the sum is 55.

The spelling of 181952642953 in words is "one hundred eighty-one billion, nine hundred fifty-two million, six hundred forty-two thousand, nine hundred fifty-three".