7143028731 has 12 divisors (see below), whose sum is σ = 10512382608. Its totient is φ = 4672169424.

The previous prime is 7143028681. The next prime is 7143028799. The reversal of 7143028731 is 1378203417.

It is not a de Polignac number, because 7143028731 - 2⁶ = 7143028667 is a prime.

It is a super-2 number, since 2×7143028731² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7143028631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7486975 + ... + 7487928.

It is an arithmetic number, because the mean of its divisors is an integer number (876031884).

Almost surely, 2^7143028731 is an apocalyptic number.

7143028731 is a deficient number, since it is larger than the sum of its proper divisors (3369353877).

7143028731 is a wasteful number, since it uses less digits than its factorization.

7143028731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14974962 (or 14974959 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 7143028731 is about 84516.4405958983. The cubic root of 7143028731 is about 1925.8722066262.

The spelling of 7143028731 in words is "seven billion, one hundred forty-three million, twenty-eight thousand, seven hundred thirty-one".