155533241 has 2 divisors, whose sum is σ = 155533242. Its totient is φ = 155533240.

The previous prime is 155533229. The next prime is 155533253. The reversal of 155533241 is 142335551.

It is a balanced prime because it is at equal distance from previous prime (155533229) and next prime (155533253).

It can be written as a sum of positive squares in only one way, i.e., 150675625 + 4857616 = 12275^2 + 2204^2 .

It is a cyclic number.

It is not a de Polignac number, because 155533241 - 2¹⁴ = 155516857 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (155533201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77766620 + 77766621.

It is an arithmetic number, because the mean of its divisors is an integer number (77766621).

Almost surely, 2^155533241 is an apocalyptic number.

It is an amenable number.

155533241 is a deficient number, since it is larger than the sum of its proper divisors (1).

155533241 is an equidigital number, since it uses as much as digits as its factorization.

155533241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 29.

The square root of 155533241 is about 12471.2966847878. The cubic root of 155533241 is about 537.7838310571.

Adding to 155533241 its reverse (142335551), we get a palindrome (297868792).

The spelling of 155533241 in words is "one hundred fifty-five million, five hundred thirty-three thousand, two hundred forty-one".