149106161 has 2 divisors, whose sum is σ = 149106162. Its totient is φ = 149106160.

The previous prime is 149106131. The next prime is 149106163. The reversal of 149106161 is 161601941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103408561 + 45697600 = 10169^2 + 6760^2 .

It is a cyclic number.

It is not a de Polignac number, because 149106161 - 2¹⁰ = 149105137 is a prime.

Together with 149106163, 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 (149106163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74553080 + 74553081.

It is an arithmetic number, because the mean of its divisors is an integer number (74553081).

Almost surely, 2^149106161 is an apocalyptic number.

It is an amenable number.

149106161 is a deficient number, since it is larger than the sum of its proper divisors (1).

149106161 is an equidigital number, since it uses as much as digits as its factorization.

149106161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 149106161 is about 12210.9033654353. The cubic root of 149106161 is about 530.2717972240.

The spelling of 149106161 in words is "one hundred forty-nine million, one hundred six thousand, one hundred sixty-one".