1244468133 has 12 divisors (see below), whose sum is σ = 1810687788. Its totient is φ = 823588800.

The previous prime is 1244468131. The next prime is 1244468177. The reversal of 1244468133 is 3318644421.

It can be written as a sum of positive squares in 2 ways, for example, as 272151009 + 972317124 = 16497^2 + 31182^2 .

It is not a de Polignac number, because 1244468133 - 2¹ = 1244468131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244468131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 503418 + ... + 505883.

It is an arithmetic number, because the mean of its divisors is an integer number (150890649).

Almost surely, 2^1244468133 is an apocalyptic number.

It is an amenable number.

1244468133 is a deficient number, since it is larger than the sum of its proper divisors (566219655).

1244468133 is a wasteful number, since it uses less digits than its factorization.

1244468133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009444 (or 1009441 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 1244468133 is about 35277.0198996457. The cubic root of 1244468133 is about 1075.6259222696.

The spelling of 1244468133 in words is "one billion, two hundred forty-four million, four hundred sixty-eight thousand, one hundred thirty-three".