122115843 has 10 divisors (see below), whose sum is σ = 182420084. Its totient is φ = 81410508.

The previous prime is 122115841. The next prime is 122115859. The reversal of 122115843 is 348511221.

It is not a de Polignac number, because 122115843 - 2¹ = 122115841 is a prime.

It is a super-2 number, since 2×122115843² = 29824558223201298, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122115841) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 753721 + ... + 753882.

Almost surely, 2^122115843 is an apocalyptic number.

122115843 is a deficient number, since it is larger than the sum of its proper divisors (60304241).

122115843 is an equidigital number, since it uses as much as digits as its factorization.

122115843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507615 (or 1507606 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 122115843 is about 11050.6037391629. The cubic root of 122115843 is about 496.1244958800.

The spelling of 122115843 in words is "one hundred twenty-two million, one hundred fifteen thousand, eight hundred forty-three".