155230763243 has 2 divisors, whose sum is σ = 155230763244. Its totient is φ = 155230763242.

The previous prime is 155230763213. The next prime is 155230763323. The reversal of 155230763243 is 342367032551.

155230763243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155230763243 - 2¹⁴ = 155230746859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155230763243.

It is not a weakly prime, because it can be changed into another prime (155230763213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77615381621 + 77615381622.

It is an arithmetic number, because the mean of its divisors is an integer number (77615381622).

Almost surely, 2^155230763243 is an apocalyptic number.

155230763243 is a deficient number, since it is larger than the sum of its proper divisors (1).

155230763243 is an equidigital number, since it uses as much as digits as its factorization.

155230763243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 41.

Adding to 155230763243 its reverse (342367032551), we get a palindrome (497597795794).

The spelling of 155230763243 in words is "one hundred fifty-five billion, two hundred thirty million, seven hundred sixty-three thousand, two hundred forty-three".