1241261133 has 16 divisors (see below), whose sum is σ = 1899570816. Its totient is φ = 706245120.

The previous prime is 1241261093. The next prime is 1241261141. The reversal of 1241261133 is 3311621421.

It is a happy number.

It is not a de Polignac number, because 1241261133 - 2¹² = 1241257037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241261233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121948 + ... + 131733.

It is an arithmetic number, because the mean of its divisors is an integer number (118723176).

Almost surely, 2^1241261133 is an apocalyptic number.

It is an amenable number.

1241261133 is a deficient number, since it is larger than the sum of its proper divisors (658309683).

1241261133 is a wasteful number, since it uses less digits than its factorization.

1241261133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253924.

The product of its digits is 864, while the sum is 24.

The square root of 1241261133 is about 35231.5360579127. The cubic root of 1241261133 is about 1074.7011631579.

Adding to 1241261133 its reverse (3311621421), we get a palindrome (4552882554).

The spelling of 1241261133 in words is "one billion, two hundred forty-one million, two hundred sixty-one thousand, one hundred thirty-three".