122847131 has 4 divisors (see below), whose sum is σ = 134015064. Its totient is φ = 111679200.

The previous prime is 122847097. The next prime is 122847157. The reversal of 122847131 is 131748221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122847131 - 2¹⁰ = 122846107 is a prime.

It is a super-2 number, since 2×122847131² = 30182835189862322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122847094 and 122847103.

It is not an unprimeable number, because it can be changed into a prime (122847191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5583950 + ... + 5583971.

It is an arithmetic number, because the mean of its divisors is an integer number (33503766).

Almost surely, 2^122847131 is an apocalyptic number.

122847131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122847131 is a deficient number, since it is larger than the sum of its proper divisors (11167933).

122847131 is a wasteful number, since it uses less digits than its factorization.

122847131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11167932.

The product of its digits is 2688, while the sum is 29.

The square root of 122847131 is about 11083.6424969412. The cubic root of 122847131 is about 497.1128690373.

The spelling of 122847131 in words is "one hundred twenty-two million, eight hundred forty-seven thousand, one hundred thirty-one".