7240143 has 16 divisors (see below), whose sum is σ = 10059776. Its totient is φ = 4626720.

The previous prime is 7240139. The next prime is 7240153. The reversal of 7240143 is 3410427.

It is not a de Polignac number, because 7240143 - 2² = 7240139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7240133) 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, 11505 + ... + 12117.

It is an arithmetic number, because the mean of its divisors is an integer number (628736).

Almost surely, 2^7240143 is an apocalyptic number.

7240143 is a deficient number, since it is larger than the sum of its proper divisors (2819633).

7240143 is a wasteful number, since it uses less digits than its factorization.

7240143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 7240143 is about 2690.7513820493. The cubic root of 7240143 is about 193.4560790753.

The spelling of 7240143 in words is "seven million, two hundred forty thousand, one hundred forty-three".