122471689 has 8 divisors (see below), whose sum is σ = 129793320. Its totient is φ = 115163136.

The previous prime is 122471677. The next prime is 122471693. The reversal of 122471689 is 986174221.

It can be written as a sum of positive squares in 4 ways, for example, as 2350089 + 120121600 = 1533^2 + 10960^2 .

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 122471689 - 2⁹ = 122471177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122471639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21397 + ... + 26509.

It is an arithmetic number, because the mean of its divisors is an integer number (16224165).

Almost surely, 2^122471689 is an apocalyptic number.

It is an amenable number.

122471689 is a deficient number, since it is larger than the sum of its proper divisors (7321631).

122471689 is a wasteful number, since it uses less digits than its factorization.

122471689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6539.

The product of its digits is 48384, while the sum is 40.

The square root of 122471689 is about 11066.6927760736. The cubic root of 122471689 is about 496.6059313948.

The spelling of 122471689 in words is "one hundred twenty-two million, four hundred seventy-one thousand, six hundred eighty-nine".