7121072 has 60 divisors (see below), whose sum is σ = 16623936. Its totient is φ = 2943360.

The previous prime is 7121071. The next prime is 7121089. The reversal of 7121072 is 2701217.

It is not an unprimeable number, because it can be changed into a prime (7121071) 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, 24158 + ... + 24450.

Almost surely, 2^7121072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7121072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8311968).

7121072 is an abundant number, since it is smaller than the sum of its proper divisors (9502864).

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

7121072 is a wasteful number, since it uses less digits than its factorization.

7121072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 7121072 is about 2668.5336797575. The cubic root of 7121072 is about 192.3896888650.

Adding to 7121072 its reverse (2701217), we get a palindrome (9822289).

The spelling of 7121072 in words is "seven million, one hundred twenty-one thousand, seventy-two".