155440312134941 has 2 divisors, whose sum is σ = 155440312134942. Its totient is φ = 155440312134940.

The previous prime is 155440312134929. The next prime is 155440312134949. The reversal of 155440312134941 is 149431213044551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100774192663225 + 54666119471716 = 10038635^2 + 7393654^2 .

It is a cyclic number.

It is not a de Polignac number, because 155440312134941 - 2³⁴ = 155423132265757 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155440312134949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77720156067470 + 77720156067471.

It is an arithmetic number, because the mean of its divisors is an integer number (77720156067471).

Almost surely, 2^{155440312134941} is an apocalyptic number.

It is an amenable number.

155440312134941 is a deficient number, since it is larger than the sum of its proper divisors (1).

155440312134941 is an equidigital number, since it uses as much as digits as its factorization.

155440312134941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 155440312134941 in words is "one hundred fifty-five trillion, four hundred forty billion, three hundred twelve million, one hundred thirty-four thousand, nine hundred forty-one".