122128867 has 8 divisors (see below), whose sum is σ = 147786336. Its totient is φ = 98524032.

The previous prime is 122128861. The next prime is 122128967. The reversal of 122128867 is 768821221.

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 122128867 - 2³ = 122128859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122128861) 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, 513028 + ... + 513265.

It is an arithmetic number, because the mean of its divisors is an integer number (18473292).

Almost surely, 2^122128867 is an apocalyptic number.

122128867 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

122128867 is a deficient number, since it is larger than the sum of its proper divisors (25657469).

122128867 is a wasteful number, since it uses less digits than its factorization.

122128867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026317.

The product of its digits is 21504, while the sum is 37.

The square root of 122128867 is about 11051.1930125213. The cubic root of 122128867 is about 496.1421329465.

The spelling of 122128867 in words is "one hundred twenty-two million, one hundred twenty-eight thousand, eight hundred sixty-seven".