122672159 has 4 divisors (see below), whose sum is σ = 124683240. Its totient is φ = 120661080.

The previous prime is 122672141. The next prime is 122672201. The reversal of 122672159 is 951276221.

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 122672159 - 2¹⁶ = 122606623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122672959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005449 + ... + 1005570.

It is an arithmetic number, because the mean of its divisors is an integer number (31170810).

Almost surely, 2^122672159 is an apocalyptic number.

122672159 is a deficient number, since it is larger than the sum of its proper divisors (2011081).

122672159 is an equidigital number, since it uses as much as digits as its factorization.

122672159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011080.

The product of its digits is 15120, while the sum is 35.

The square root of 122672159 is about 11075.7464308280. The cubic root of 122672159 is about 496.8767431554.

The spelling of 122672159 in words is "one hundred twenty-two million, six hundred seventy-two thousand, one hundred fifty-nine".