7151872 has 72 divisors (see below), whose sum is σ = 17627456. Its totient is φ = 2820096.

The previous prime is 7151869. The next prime is 7151887. The reversal of 7151872 is 2781517.

It is a happy number.

It is a super-2 number, since 2×7151872² = 102298546208768, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23143 + ... + 23449.

Almost surely, 2^7151872 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 7151872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8813728).

7151872 is an abundant number, since it is smaller than the sum of its proper divisors (10475584).

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

7151872 is a wasteful number, since it uses less digits than its factorization.

7151872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 329 counting only the distinct ones).

The product of its digits is 3920, while the sum is 31.

The square root of 7151872 is about 2674.2984126683. The cubic root of 7151872 is about 192.6666640060. Note that the first 5 decimals are identical.

The spelling of 7151872 in words is "seven million, one hundred fifty-one thousand, eight hundred seventy-two".