123071161 has 8 divisors (see below), whose sum is σ = 125095520. Its totient is φ = 121052448.

The previous prime is 123071119. The next prime is 123071197. The reversal of 123071161 is 161170321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123071161 - 2¹⁵ = 123038393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123071761) 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 in 7 ways as a sum of consecutive naturals, for example, 74830 + ... + 76456.

It is an arithmetic number, because the mean of its divisors is an integer number (15636940).

Almost surely, 2^123071161 is an apocalyptic number.

It is an amenable number.

123071161 is a deficient number, since it is larger than the sum of its proper divisors (2024359).

123071161 is a wasteful number, since it uses less digits than its factorization.

123071161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 123071161 is about 11093.7442281675. The cubic root of 123071161 is about 497.4148719272.

The spelling of 123071161 in words is "one hundred twenty-three million, seventy-one thousand, one hundred sixty-one".