155441233 has 2 divisors, whose sum is σ = 155441234. Its totient is φ = 155441232.

The previous prime is 155441227. The next prime is 155441243. The reversal of 155441233 is 332144551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154455184 + 986049 = 12428^2 + 993^2 .

It is a cyclic number.

It is not a de Polignac number, because 155441233 - 2⁹ = 155440721 is a prime.

It is not a weakly prime, because it can be changed into another prime (155441213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77720616 + 77720617.

It is an arithmetic number, because the mean of its divisors is an integer number (77720617).

Almost surely, 2^155441233 is an apocalyptic number.

It is an amenable number.

155441233 is a deficient number, since it is larger than the sum of its proper divisors (1).

155441233 is an equidigital number, since it uses as much as digits as its factorization.

155441233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 155441233 is about 12467.6073486455. The cubic root of 155441233 is about 537.6777654671.

Adding to 155441233 its reverse (332144551), we get a palindrome (487585784).

The spelling of 155441233 in words is "one hundred fifty-five million, four hundred forty-one thousand, two hundred thirty-three".