155243700373 has 2 divisors, whose sum is σ = 155243700374. Its totient is φ = 155243700372.

The previous prime is 155243700329. The next prime is 155243700379. The reversal of 155243700373 is 373007342551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154902854929 + 340845444 = 393577^2 + 18462^2 .

It is a cyclic number.

It is not a de Polignac number, because 155243700373 - 2²⁵ = 155210145941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155243700379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77621850186 + 77621850187.

It is an arithmetic number, because the mean of its divisors is an integer number (77621850187).

Almost surely, 2^155243700373 is an apocalyptic number.

It is an amenable number.

155243700373 is a deficient number, since it is larger than the sum of its proper divisors (1).

155243700373 is an equidigital number, since it uses as much as digits as its factorization.

155243700373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 40.

The spelling of 155243700373 in words is "one hundred fifty-five billion, two hundred forty-three million, seven hundred thousand, three hundred seventy-three".