7139151655 has 4 divisors (see below), whose sum is σ = 8566981992. Its totient is φ = 5711321320.

The previous prime is 7139151641. The next prime is 7139151673. The reversal of 7139151655 is 5561519317.

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

It is not a de Polignac number, because 7139151655 - 2¹³ = 7139143463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713915161 + ... + 713915170.

It is an arithmetic number, because the mean of its divisors is an integer number (2141745498).

Almost surely, 2^7139151655 is an apocalyptic number.

7139151655 is a deficient number, since it is larger than the sum of its proper divisors (1427830337).

7139151655 is a wasteful number, since it uses less digits than its factorization.

7139151655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427830336.

The product of its digits is 141750, while the sum is 43.

The square root of 7139151655 is about 84493.5006672111. The cubic root of 7139151655 is about 1925.5237034665.

The spelling of 7139151655 in words is "seven billion, one hundred thirty-nine million, one hundred fifty-one thousand, six hundred fifty-five".