1144548135 has 12 divisors (see below), whose sum is σ = 1983883512. Its totient is φ = 610425648.

The previous prime is 1144548127. The next prime is 1144548151. The reversal of 1144548135 is 5318454411.

1144548135 is a `hidden beast` number, since 1 + 144 + 5 + 481 + 35 = 666.

It is not a de Polignac number, because 1144548135 - 2³ = 1144548127 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1144548135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12717157 + ... + 12717246.

It is an arithmetic number, because the mean of its divisors is an integer number (165323626).

Almost surely, 2^1144548135 is an apocalyptic number.

1144548135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1144548135 is a deficient number, since it is larger than the sum of its proper divisors (839335377).

1144548135 is a wasteful number, since it uses less digits than its factorization.

1144548135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25434414 (or 25434411 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 1144548135 is about 33831.1710556995. The cubic root of 1144548135 is about 1046.0313178012.

The spelling of 1144548135 in words is "one billion, one hundred forty-four million, five hundred forty-eight thousand, one hundred thirty-five".