7249143 has 16 divisors (see below), whose sum is σ = 10647936. Its totient is φ = 4350240.

The previous prime is 7249141. The next prime is 7249183. The reversal of 7249143 is 3419427.

It is a happy number.

It is not a de Polignac number, because 7249143 - 2¹ = 7249141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7249143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7249141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2505 + ... + 4557.

It is an arithmetic number, because the mean of its divisors is an integer number (665496).

Almost surely, 2^7249143 is an apocalyptic number.

7249143 is a deficient number, since it is larger than the sum of its proper divisors (3398793).

7249143 is a wasteful number, since it uses less digits than its factorization.

7249143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174.

The product of its digits is 6048, while the sum is 30.

The square root of 7249143 is about 2692.4232579593. The cubic root of 7249143 is about 193.5362056590.

It can be divided in two parts, 72491 and 43, that multiplied together give a palindrome (3117113).

The spelling of 7249143 in words is "seven million, two hundred forty-nine thousand, one hundred forty-three".