123405555541459 has 2 divisors, whose sum is σ = 123405555541460. Its totient is φ = 123405555541458.

The previous prime is 123405555541451. The next prime is 123405555541529. The reversal of 123405555541459 is 954145555504321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123405555541459 - 2³ = 123405555541451 is a prime.

It is a super-2 number, since 2×123405555541459² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123405555541451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61702777770729 + 61702777770730.

It is an arithmetic number, because the mean of its divisors is an integer number (61702777770730).

Almost surely, 2^{123405555541459} is an apocalyptic number.

123405555541459 is a deficient number, since it is larger than the sum of its proper divisors (1).

123405555541459 is an equidigital number, since it uses as much as digits as its factorization.

123405555541459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000000, while the sum is 58.

The spelling of 123405555541459 in words is "one hundred twenty-three trillion, four hundred five billion, five hundred fifty-five million, five hundred forty-one thousand, four hundred fifty-nine".