7156139002 has 16 divisors (see below), whose sum is σ = 10911479040. Its totient is φ = 3519324432.

The previous prime is 7156138937. The next prime is 7156139021. The reversal of 7156139002 is 2009316517.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44553 + ... + 127660.

It is an arithmetic number, because the mean of its divisors is an integer number (681967440).

Almost surely, 2^7156139002 is an apocalyptic number.

7156139002 is a deficient number, since it is larger than the sum of its proper divisors (3755340038).

7156139002 is a wasteful number, since it uses less digits than its factorization.

7156139002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172557.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 7156139002 is about 84593.9655176420. The cubic root of 7156139002 is about 1927.0497311803.

The spelling of 7156139002 in words is "seven billion, one hundred fifty-six million, one hundred thirty-nine thousand, two".