122672871 has 24 divisors (see below), whose sum is σ = 188273280. Its totient is φ = 76821696.

The previous prime is 122672857. The next prime is 122672881. The reversal of 122672871 is 178276221.

It is not a de Polignac number, because 122672871 - 2⁵ = 122672839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122672821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3306 + ... + 16008.

It is an arithmetic number, because the mean of its divisors is an integer number (7844720).

Almost surely, 2^122672871 is an apocalyptic number.

122672871 is a deficient number, since it is larger than the sum of its proper divisors (65600409).

122672871 is a wasteful number, since it uses less digits than its factorization.

122672871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12775 (or 12772 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 122672871 is about 11075.7785730846. The cubic root of 122672871 is about 496.8777044590.

The spelling of 122672871 in words is "one hundred twenty-two million, six hundred seventy-two thousand, eight hundred seventy-one".