161264627 has 2 divisors, whose sum is σ = 161264628. Its totient is φ = 161264626.

The previous prime is 161264599. The next prime is 161264629. The reversal of 161264627 is 726462161.

It is a strong prime.

It is an emirp because it is prime and its reverse (726462161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161264627 - 2⁸ = 161264371 is a prime.

Together with 161264629, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (161264629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80632313 + 80632314.

It is an arithmetic number, because the mean of its divisors is an integer number (80632314).

Almost surely, 2^161264627 is an apocalyptic number.

161264627 is a deficient number, since it is larger than the sum of its proper divisors (1).

161264627 is an equidigital number, since it uses as much as digits as its factorization.

161264627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 161264627 is about 12699.0010237026. The cubic root of 161264627 is about 544.3100738676.

The spelling of 161264627 in words is "one hundred sixty-one million, two hundred sixty-four thousand, six hundred twenty-seven".