2132139647 has 4 divisors (see below), whose sum is σ = 2325970536. Its totient is φ = 1938308760.

The previous prime is 2132139623. The next prime is 2132139697. The reversal of 2132139647 is 7469312312.

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

It is a cyclic number.

It is not a de Polignac number, because 2132139647 - 2¹⁶ = 2132074111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2132139647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2132139697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96915428 + ... + 96915449.

It is an arithmetic number, because the mean of its divisors is an integer number (581492634).

Almost surely, 2^2132139647 is an apocalyptic number.

2132139647 is a deficient number, since it is larger than the sum of its proper divisors (193830889).

2132139647 is a wasteful number, since it uses less digits than its factorization.

2132139647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193830888.

The product of its digits is 54432, while the sum is 38.

The square root of 2132139647 is about 46175.0976934538. The cubic root of 2132139647 is about 1287.0790322855.

The spelling of 2132139647 in words is "two billion, one hundred thirty-two million, one hundred thirty-nine thousand, six hundred forty-seven".