7122159 has 12 divisors (see below), whose sum is σ = 11222952. Its totient is φ = 4316400.

The previous prime is 7122149. The next prime is 7122179. The reversal of 7122159 is 9512217.

It is not a de Polignac number, because 7122159 - 2²⁰ = 6073583 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7122109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35872 + ... + 36069.

It is an arithmetic number, because the mean of its divisors is an integer number (935246).

Almost surely, 2^7122159 is an apocalyptic number.

7122159 is a deficient number, since it is larger than the sum of its proper divisors (4100793).

7122159 is a wasteful number, since it uses less digits than its factorization.

7122159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71958 (or 71955 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 7122159 is about 2668.7373418904. The cubic root of 7122159 is about 192.3994775106.

The spelling of 7122159 in words is "seven million, one hundred twenty-two thousand, one hundred fifty-nine".