155228341 has 4 divisors (see below), whose sum is σ = 155872684. Its totient is φ = 154584000.

The previous prime is 155228327. The next prime is 155228363. The reversal of 155228341 is 143822551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 143822551 = 349 ⋅412099.

It can be written as a sum of positive squares in 2 ways, for example, as 139594225 + 15634116 = 11815^2 + 3954^2 .

It is a cyclic number.

It is not a de Polignac number, because 155228341 - 2⁹ = 155227829 is a prime.

It is a super-2 number, since 2×155228341² = 48191675699224562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155228141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321810 + ... + 322291.

It is an arithmetic number, because the mean of its divisors is an integer number (38968171).

Almost surely, 2^155228341 is an apocalyptic number.

It is an amenable number.

155228341 is a deficient number, since it is larger than the sum of its proper divisors (644343).

155228341 is an equidigital number, since it uses as much as digits as its factorization.

155228341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644342.

The product of its digits is 9600, while the sum is 31.

The square root of 155228341 is about 12459.0666183306. The cubic root of 155228341 is about 537.4321858559.

The spelling of 155228341 in words is "one hundred fifty-five million, two hundred twenty-eight thousand, three hundred forty-one".