155541241 has 2 divisors, whose sum is σ = 155541242. Its totient is φ = 155541240.

The previous prime is 155541193. The next prime is 155541251. The reversal of 155541241 is 142145551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90174016 + 65367225 = 9496^2 + 8085^2 .

It is a cyclic number.

It is not a de Polignac number, because 155541241 - 2¹⁷ = 155410169 is a prime.

It is not a weakly prime, because it can be changed into another prime (155541251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77770620 + 77770621.

It is an arithmetic number, because the mean of its divisors is an integer number (77770621).

Almost surely, 2^155541241 is an apocalyptic number.

It is an amenable number.

155541241 is a deficient number, since it is larger than the sum of its proper divisors (1).

155541241 is an equidigital number, since it uses as much as digits as its factorization.

155541241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4000, while the sum is 28.

The square root of 155541241 is about 12471.6174171597. The cubic root of 155541241 is about 537.7930513731.

Adding to 155541241 its reverse (142145551), we get a palindrome (297686792).

The spelling of 155541241 in words is "one hundred fifty-five million, five hundred forty-one thousand, two hundred forty-one".