4154245639 has 2 divisors, whose sum is σ = 4154245640. Its totient is φ = 4154245638.

The previous prime is 4154245619. The next prime is 4154245643. The reversal of 4154245639 is 9365424514.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4154245639 - 2¹³ = 4154237447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4154245595 and 4154245604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4154245619) 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, 2077122819 + 2077122820.

It is an arithmetic number, because the mean of its divisors is an integer number (2077122820).

Almost surely, 2^4154245639 is an apocalyptic number.

4154245639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4154245639 is an equidigital number, since it uses as much as digits as its factorization.

4154245639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 43.

The square root of 4154245639 is about 64453.4377593624. The cubic root of 4154245639 is about 1607.5484001110.

The spelling of 4154245639 in words is "four billion, one hundred fifty-four million, two hundred forty-five thousand, six hundred thirty-nine".