155241103 has 2 divisors, whose sum is σ = 155241104. Its totient is φ = 155241102.

The previous prime is 155241091. The next prime is 155241109. The reversal of 155241103 is 301142551.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155241103 - 2⁵ = 155241071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155241109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77620551 + 77620552.

It is an arithmetic number, because the mean of its divisors is an integer number (77620552).

Almost surely, 2^155241103 is an apocalyptic number.

155241103 is a deficient number, since it is larger than the sum of its proper divisors (1).

155241103 is an equidigital number, since it uses as much as digits as its factorization.

155241103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 155241103 is about 12459.5787649503. The cubic root of 155241103 is about 537.4469136682.

Adding to 155241103 its reverse (301142551), we get a palindrome (456383654).

The spelling of 155241103 in words is "one hundred fifty-five million, two hundred forty-one thousand, one hundred three".