155283741773 has 2 divisors, whose sum is σ = 155283741774. Its totient is φ = 155283741772.

The previous prime is 155283741751. The next prime is 155283741799. The reversal of 155283741773 is 377147382551.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142040795689 + 13242946084 = 376883^2 + 115078^2 .

It is a cyclic number.

It is not a de Polignac number, because 155283741773 - 2¹⁰ = 155283740749 is a prime.

It is a super-2 number, since 2×155283741773² (a number of 23 digits) contains 22 as substring.

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 (155283744773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77641870886 + 77641870887.

It is an arithmetic number, because the mean of its divisors is an integer number (77641870887).

Almost surely, 2^155283741773 is an apocalyptic number.

It is an amenable number.

155283741773 is a deficient number, since it is larger than the sum of its proper divisors (1).

155283741773 is an equidigital number, since it uses as much as digits as its factorization.

155283741773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4939200, while the sum is 53.

The spelling of 155283741773 in words is "one hundred fifty-five billion, two hundred eighty-three million, seven hundred forty-one thousand, seven hundred seventy-three".