2651265139 has 2 divisors, whose sum is σ = 2651265140. Its totient is φ = 2651265138.

The previous prime is 2651265137. The next prime is 2651265157. The reversal of 2651265139 is 9315621562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2651265139 - 2¹ = 2651265137 is a prime.

Together with 2651265137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2651265137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325632569 + 1325632570.

It is an arithmetic number, because the mean of its divisors is an integer number (1325632570).

Almost surely, 2^2651265139 is an apocalyptic number.

2651265139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2651265139 is an equidigital number, since it uses as much as digits as its factorization.

2651265139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 40.

The square root of 2651265139 is about 51490.4373549109. The cubic root of 2651265139 is about 1384.0476867402.

The spelling of 2651265139 in words is "two billion, six hundred fifty-one million, two hundred sixty-five thousand, one hundred thirty-nine".