161508107 has 2 divisors, whose sum is σ = 161508108. Its totient is φ = 161508106.

The previous prime is 161508101. The next prime is 161508133. The reversal of 161508107 is 701805161.

It is a weak prime.

It is an emirp because it is prime and its reverse (701805161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161508107 - 2⁴ = 161508091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161508107.

It is not a weakly prime, because it can be changed into another prime (161508101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80754053 + 80754054.

It is an arithmetic number, because the mean of its divisors is an integer number (80754054).

Almost surely, 2^161508107 is an apocalyptic number.

161508107 is a deficient number, since it is larger than the sum of its proper divisors (1).

161508107 is an equidigital number, since it uses as much as digits as its factorization.

161508107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 161508107 is about 12708.5839887849. The cubic root of 161508107 is about 544.5838722349.

The spelling of 161508107 in words is "one hundred sixty-one million, five hundred eight thousand, one hundred seven".