1154421535138 has 8 divisors (see below), whose sum is σ = 1731961463580. Its totient is φ = 577101047280.

The previous prime is 1154421535103. The next prime is 1154421535151. The reversal of 1154421535138 is 8315351244511.

It can be written as a sum of positive squares in 2 ways, for example, as 1107699415729 + 46722119409 = 1052473^2 + 216153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1154421535094 and 1154421535103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54846993 + ... + 54868036.

Almost surely, 2^{1154421535138} is an apocalyptic number.

1154421535138 is a deficient number, since it is larger than the sum of its proper divisors (577539928442).

1154421535138 is a wasteful number, since it uses less digits than its factorization.

1154421535138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109720292.

The product of its digits is 288000, while the sum is 43.

Adding to 1154421535138 its reverse (8315351244511), we get a palindrome (9469772779649).

The spelling of 1154421535138 in words is "one trillion, one hundred fifty-four billion, four hundred twenty-one million, five hundred thirty-five thousand, one hundred thirty-eight".