2651404139 has 2 divisors, whose sum is σ = 2651404140. Its totient is φ = 2651404138.

The previous prime is 2651404121. The next prime is 2651404163. The reversal of 2651404139 is 9314041562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2651404139 - 2¹² = 2651400043 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2651404099 and 2651404108.

It is not a weakly prime, because it can be changed into another prime (2651404169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325702069 + 1325702070.

It is an arithmetic number, because the mean of its divisors is an integer number (1325702070).

Almost surely, 2^2651404139 is an apocalyptic number.

2651404139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2651404139 is an equidigital number, since it uses as much as digits as its factorization.

2651404139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 2651404139 is about 51491.7871024108. The cubic root of 2651404139 is about 1384.0718738429.

The spelling of 2651404139 in words is "two billion, six hundred fifty-one million, four hundred four thousand, one hundred thirty-nine".