7133472 has 144 divisors (see below), whose sum is σ = 22643712. Its totient is φ = 2119680.

The previous prime is 7133459. The next prime is 7133479. The reversal of 7133472 is 2743317.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7133479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151753 + ... + 151799.

It is an arithmetic number, because the mean of its divisors is an integer number (157248).

Almost surely, 2^7133472 is an apocalyptic number.

7133472 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7133472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11321856).

7133472 is an abundant number, since it is smaller than the sum of its proper divisors (15510240).

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

7133472 is a wasteful number, since it uses less digits than its factorization.

7133472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 100 counting only the distinct ones).

The product of its digits is 3528, while the sum is 27.

The square root of 7133472 is about 2670.8560425452. The cubic root of 7133472 is about 192.5012941949.

Adding to 7133472 its reverse (2743317), we get a palindrome (9876789).

The spelling of 7133472 in words is "seven million, one hundred thirty-three thousand, four hundred seventy-two".