1241330155 has 16 divisors (see below), whose sum is σ = 1623515040. Its totient is φ = 905626368.

The previous prime is 1241330141. The next prime is 1241330159. The reversal of 1241330155 is 5510331421.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1241330155 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1241330159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109650 + ... + 120439.

It is an arithmetic number, because the mean of its divisors is an integer number (101469690).

Almost surely, 2^1241330155 is an apocalyptic number.

1241330155 is a deficient number, since it is larger than the sum of its proper divisors (382184885).

1241330155 is a wasteful number, since it uses less digits than its factorization.

1241330155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230190.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1241330155 is about 35232.5155928441. The cubic root of 1241330155 is about 1074.7210828581.

Adding to 1241330155 its reverse (5510331421), we get a palindrome (6751661576).

The spelling of 1241330155 in words is "one billion, two hundred forty-one million, three hundred thirty thousand, one hundred fifty-five".