1138752458 has 8 divisors (see below), whose sum is σ = 1709661252. Its totient is φ = 568865376.

The previous prime is 1138752421. The next prime is 1138752469. The reversal of 1138752458 is 8542578311.

It can be written as a sum of positive squares in 2 ways, for example, as 1138590049 + 162409 = 33743^2 + 403^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252635 + ... + 257102.

Almost surely, 2^1138752458 is an apocalyptic number.

1138752458 is a deficient number, since it is larger than the sum of its proper divisors (570908794).

1138752458 is a wasteful number, since it uses less digits than its factorization.

1138752458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510856.

The product of its digits is 268800, while the sum is 44.

The square root of 1138752458 is about 33745.4064725853. The cubic root of 1138752458 is about 1044.2627242329.

The spelling of 1138752458 in words is "one billion, one hundred thirty-eight million, seven hundred fifty-two thousand, four hundred fifty-eight".