156506122243 has 2 divisors, whose sum is σ = 156506122244. Its totient is φ = 156506122242.

The previous prime is 156506122229. The next prime is 156506122247. The reversal of 156506122243 is 342221605651.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-156506122243 is a prime.

It is a super-3 number, since 3×156506122243³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (156506122247) 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, 78253061121 + 78253061122.

It is an arithmetic number, because the mean of its divisors is an integer number (78253061122).

Almost surely, 2^156506122243 is an apocalyptic number.

156506122243 is a deficient number, since it is larger than the sum of its proper divisors (1).

156506122243 is an equidigital number, since it uses as much as digits as its factorization.

156506122243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 156506122243 its reverse (342221605651), we get a palindrome (498727727894).

The spelling of 156506122243 in words is "one hundred fifty-six billion, five hundred six million, one hundred twenty-two thousand, two hundred forty-three".