2139364547 has 4 divisors (see below), whose sum is σ = 2145828216. Its totient is φ = 2132900880.

The previous prime is 2139364517. The next prime is 2139364553. The reversal of 2139364547 is 7454639312.

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 2139364547 - 2⁸ = 2139364291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2139364498 and 2139364507.

It is not an unprimeable number, because it can be changed into a prime (2139364517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3231338 + ... + 3231999.

It is an arithmetic number, because the mean of its divisors is an integer number (536457054).

Almost surely, 2^2139364547 is an apocalyptic number.

2139364547 is a deficient number, since it is larger than the sum of its proper divisors (6463669).

2139364547 is an equidigital number, since it uses as much as digits as its factorization.

2139364547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6463668.

The product of its digits is 544320, while the sum is 44.

The square root of 2139364547 is about 46253.2652577091. The cubic root of 2139364547 is about 1288.5311781916.

The spelling of 2139364547 in words is "two billion, one hundred thirty-nine million, three hundred sixty-four thousand, five hundred forty-seven".