155242333 has 2 divisors, whose sum is σ = 155242334. Its totient is φ = 155242332.

The previous prime is 155242313. The next prime is 155242357. The reversal of 155242333 is 333242551.

155242333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138815524 + 16426809 = 11782^2 + 4053^2 .

It is a cyclic number.

It is not a de Polignac number, because 155242333 - 2⁵ = 155242301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155242313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77621166 + 77621167.

It is an arithmetic number, because the mean of its divisors is an integer number (77621167).

Almost surely, 2^155242333 is an apocalyptic number.

It is an amenable number.

155242333 is a deficient number, since it is larger than the sum of its proper divisors (1).

155242333 is an equidigital number, since it uses as much as digits as its factorization.

155242333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 28.

The square root of 155242333 is about 12459.6281244666. The cubic root of 155242333 is about 537.4483330903.

Adding to 155242333 its reverse (333242551), we get a palindrome (488484884).

The spelling of 155242333 in words is "one hundred fifty-five million, two hundred forty-two thousand, three hundred thirty-three".