155422241 has 8 divisors (see below), whose sum is σ = 167651904. Its totient is φ = 143231760.

The previous prime is 155422139. The next prime is 155422249. The reversal of 155422241 is 142224551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155422241 - 2²⁶ = 88313377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 155422241.

It is not an unprimeable number, because it can be changed into a prime (155422249) 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 7 ways as a sum of consecutive naturals, for example, 1271 + ... + 17676.

It is an arithmetic number, because the mean of its divisors is an integer number (20956488).

Almost surely, 2^155422241 is an apocalyptic number.

It is an amenable number.

155422241 is a deficient number, since it is larger than the sum of its proper divisors (12229663).

155422241 is a wasteful number, since it uses less digits than its factorization.

155422241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19591.

The product of its digits is 3200, while the sum is 26.

The square root of 155422241 is about 12466.8456716204. The cubic root of 155422241 is about 537.6558665329.

Adding to 155422241 its reverse (142224551), we get a palindrome (297646792).

The spelling of 155422241 in words is "one hundred fifty-five million, four hundred twenty-two thousand, two hundred forty-one".