7143513893 has 4 divisors (see below), whose sum is σ = 7278297228. Its totient is φ = 7008730560.

The previous prime is 7143513877. The next prime is 7143513901. The reversal of 7143513893 is 3983153417.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6564726529 + 578787364 = 81023^2 + 24058^2 .

It is a cyclic number.

It is not a de Polignac number, because 7143513893 - 2⁴ = 7143513877 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 (7143513833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67391588 + ... + 67391693.

It is an arithmetic number, because the mean of its divisors is an integer number (1819574307).

Almost surely, 2^7143513893 is an apocalyptic number.

It is an amenable number.

7143513893 is a deficient number, since it is larger than the sum of its proper divisors (134783335).

7143513893 is a wasteful number, since it uses less digits than its factorization.

7143513893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134783334.

The product of its digits is 272160, while the sum is 44.

The square root of 7143513893 is about 84519.3107697880. The cubic root of 7143513893 is about 1925.9158080588.

The spelling of 7143513893 in words is "seven billion, one hundred forty-three million, five hundred thirteen thousand, eight hundred ninety-three".