7139645139 has 8 divisors (see below), whose sum is σ = 10384938432. Its totient is φ = 4327057640.

The previous prime is 7139645077. The next prime is 7139645141. The reversal of 7139645139 is 9315469317.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7139645139 - 2⁷ = 7139645011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7139645039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108176409 + ... + 108176474.

It is an arithmetic number, because the mean of its divisors is an integer number (1298117304).

Almost surely, 2^7139645139 is an apocalyptic number.

7139645139 is a deficient number, since it is larger than the sum of its proper divisors (3245293293).

7139645139 is a wasteful number, since it uses less digits than its factorization.

7139645139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216352897.

The product of its digits is 612360, while the sum is 48.

The square root of 7139645139 is about 84496.4208650284. The cubic root of 7139645139 is about 1925.5680688333.

The spelling of 7139645139 in words is "seven billion, one hundred thirty-nine million, six hundred forty-five thousand, one hundred thirty-nine".