15826135243 has 2 divisors, whose sum is σ = 15826135244. Its totient is φ = 15826135242.

The previous prime is 15826135231. The next prime is 15826135249. The reversal of 15826135243 is 34253162851.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15826135243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15826135196 and 15826135205.

It is not a weakly prime, because it can be changed into another prime (15826135249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7913067621 + 7913067622.

It is an arithmetic number, because the mean of its divisors is an integer number (7913067622).

Almost surely, 2^15826135243 is an apocalyptic number.

15826135243 is a deficient number, since it is larger than the sum of its proper divisors (1).

15826135243 is an equidigital number, since it uses as much as digits as its factorization.

15826135243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 40.

The spelling of 15826135243 in words is "fifteen billion, eight hundred twenty-six million, one hundred thirty-five thousand, two hundred forty-three".