155113273 has 6 divisors (see below), whose sum is σ = 180437946. Its totient is φ = 132954192.

The previous prime is 155113271. The next prime is 155113289. The reversal of 155113273 is 372311551.

It can be written as a sum of positive squares in only one way, i.e., 82301184 + 72812089 = 9072^2 + 8533^2 .

It is not a de Polignac number, because 155113273 - 2¹ = 155113271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155113271) 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 in 5 ways as a sum of consecutive naturals, for example, 1582740 + ... + 1582837.

It is an arithmetic number, because the mean of its divisors is an integer number (30072991).

Almost surely, 2^155113273 is an apocalyptic number.

It is an amenable number.

155113273 is a deficient number, since it is larger than the sum of its proper divisors (25324673).

155113273 is an equidigital number, since it uses as much as digits as its factorization.

155113273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165591 (or 3165584 counting only the distinct ones).

The product of its digits is 3150, while the sum is 28.

The square root of 155113273 is about 12454.4479203215. The cubic root of 155113273 is about 537.2993567319.

The spelling of 155113273 in words is "one hundred fifty-five million, one hundred thirteen thousand, two hundred seventy-three".