155112608243 has 2 divisors, whose sum is σ = 155112608244. Its totient is φ = 155112608242.

The previous prime is 155112608239. The next prime is 155112608249. The reversal of 155112608243 is 342806211551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155112608243 - 2² = 155112608239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155112608197 and 155112608206.

It is not a weakly prime, because it can be changed into another prime (155112608249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77556304121 + 77556304122.

It is an arithmetic number, because the mean of its divisors is an integer number (77556304122).

Almost surely, 2^155112608243 is an apocalyptic number.

155112608243 is a deficient number, since it is larger than the sum of its proper divisors (1).

155112608243 is an equidigital number, since it uses as much as digits as its factorization.

155112608243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 38.

Adding to 155112608243 its reverse (342806211551), we get a palindrome (497918819794).

The spelling of 155112608243 in words is "one hundred fifty-five billion, one hundred twelve million, six hundred eight thousand, two hundred forty-three".