1358855144 has 16 divisors (see below), whose sum is σ = 2555076420. Its totient is φ = 677501440.

The previous prime is 1358855143. The next prime is 1358855153. The reversal of 1358855144 is 4415588531.

It can be written as a sum of positive squares in 2 ways, for example, as 1113556900 + 245298244 = 33370^2 + 15662^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1358855095 and 1358855104.

It is not an unprimeable number, because it can be changed into a prime (1358855143) 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 3 ways as a sum of consecutive naturals, for example, 237767 + ... + 243414.

Almost surely, 2^1358855144 is an apocalyptic number.

It is an amenable number.

1358855144 is a deficient number, since it is larger than the sum of its proper divisors (1196221276).

1358855144 is a wasteful number, since it uses less digits than its factorization.

1358855144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481540 (or 481536 counting only the distinct ones).

The product of its digits is 384000, while the sum is 44.

The square root of 1358855144 is about 36862.6524276265. The cubic root of 1358855144 is about 1107.6206762806.

The spelling of 1358855144 in words is "one billion, three hundred fifty-eight million, eight hundred fifty-five thousand, one hundred forty-four".