161837107 has 2 divisors, whose sum is σ = 161837108. Its totient is φ = 161837106.

The previous prime is 161837099. The next prime is 161837113. The reversal of 161837107 is 701738161.

It is a strong prime.

It is an emirp because it is prime and its reverse (701738161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161837107 - 2³ = 161837099 is a prime.

It is equal to p_9071647 and since 161837107 and 9071647 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (161837167) 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, 80918553 + 80918554.

It is an arithmetic number, because the mean of its divisors is an integer number (80918554).

Almost surely, 2^161837107 is an apocalyptic number.

161837107 is a deficient number, since it is larger than the sum of its proper divisors (1).

161837107 is an equidigital number, since it uses as much as digits as its factorization.

161837107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 161837107 is about 12721.5214105861. The cubic root of 161837107 is about 544.9534028561.

The spelling of 161837107 in words is "one hundred sixty-one million, eight hundred thirty-seven thousand, one hundred seven".