155362241 has 2 divisors, whose sum is σ = 155362242. Its totient is φ = 155362240.

The previous prime is 155362219. The next prime is 155362261. The reversal of 155362241 is 142263551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143904016 + 11458225 = 11996^2 + 3385^2 .

It is an emirp because it is prime and its reverse (142263551) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155362241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (155362211) 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 as a sum of consecutive naturals, namely, 77681120 + 77681121.

It is an arithmetic number, because the mean of its divisors is an integer number (77681121).

Almost surely, 2^155362241 is an apocalyptic number.

It is an amenable number.

155362241 is a deficient number, since it is larger than the sum of its proper divisors (1).

155362241 is an equidigital number, since it uses as much as digits as its factorization.

155362241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 29.

The square root of 155362241 is about 12464.4390567727. The cubic root of 155362241 is about 537.5866711507.

The spelling of 155362241 in words is "one hundred fifty-five million, three hundred sixty-two thousand, two hundred forty-one".