7122018 has 8 divisors (see below), whose sum is σ = 14244048. Its totient is φ = 2374004.

The previous prime is 7122013. The next prime is 7122029. The reversal of 7122018 is 8102217.

It is a sphenic number, since it is the product of 3 distinct primes.

7122018 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 7121985 and 7122003.

It is not an unprimeable number, because it can be changed into a prime (7122013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593496 + ... + 593507.

It is an arithmetic number, because the mean of its divisors is an integer number (1780506).

Almost surely, 2^7122018 is an apocalyptic number.

7122018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7122018 is a wasteful number, since it uses less digits than its factorization.

7122018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187008.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 7122018 is about 2668.7109247725. The cubic root of 7122018 is about 192.3982078345.

The spelling of 7122018 in words is "seven million, one hundred twenty-two thousand, eighteen".