7143248 has 80 divisors (see below), whose sum is σ = 17141760. Its totient is φ = 2817408.

The previous prime is 7143233. The next prime is 7143263. The reversal of 7143248 is 8423417.

It is an interprime number because it is at equal distance from previous prime (7143233) and next prime (7143263).

It is a self number, because there is not a number n which added to its sum of digits gives 7143248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121043 + ... + 121101.

It is an arithmetic number, because the mean of its divisors is an integer number (214272).

Almost surely, 2^7143248 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 7143248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8570880).

7143248 is an abundant number, since it is smaller than the sum of its proper divisors (9998512).

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

7143248 is a wasteful number, since it uses less digits than its factorization.

7143248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 138 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 7143248 is about 2672.6855407997. The cubic root of 7143248 is about 192.5891912541.

The spelling of 7143248 in words is "seven million, one hundred forty-three thousand, two hundred forty-eight".