7930143 has 40 divisors (see below), whose sum is σ = 13538448. Its totient is φ = 4582656.

The previous prime is 7930133. The next prime is 7930151. The reversal of 7930143 is 3410397.

It is not a de Polignac number, because 7930143 - 2¹² = 7926047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7930123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17680 + ... + 18122.

Almost surely, 2^7930143 is an apocalyptic number.

7930143 is a deficient number, since it is larger than the sum of its proper divisors (5608305).

7930143 is a wasteful number, since it uses less digits than its factorization.

7930143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 7930143 is about 2816.0509583457. The cubic root of 7930143 is about 199.4161556205.

The spelling of 7930143 in words is "seven million, nine hundred thirty thousand, one hundred forty-three".