7220138143 has 2 divisors, whose sum is σ = 7220138144. Its totient is φ = 7220138142.

The previous prime is 7220138131. The next prime is 7220138161. The reversal of 7220138143 is 3418310227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7220138143 - 2²⁹ = 6683267231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7220130143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3610069071 + 3610069072.

It is an arithmetic number, because the mean of its divisors is an integer number (3610069072).

Almost surely, 2^7220138143 is an apocalyptic number.

7220138143 is a deficient number, since it is larger than the sum of its proper divisors (1).

7220138143 is an equidigital number, since it uses as much as digits as its factorization.

7220138143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 7220138143 is about 84971.3960283106. The cubic root of 7220138143 is about 1932.7773862603. Note that the first 3 decimals are identical.

The spelling of 7220138143 in words is "seven billion, two hundred twenty million, one hundred thirty-eight thousand, one hundred forty-three".