1138768754 has 4 divisors (see below), whose sum is σ = 1708153134. Its totient is φ = 569384376.

The previous prime is 1138768717. The next prime is 1138768769. The reversal of 1138768754 is 4578678311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 586753729 + 552015025 = 24223^2 + 23495^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284692187 + ... + 284692190.

Almost surely, 2^1138768754 is an apocalyptic number.

1138768754 is a deficient number, since it is larger than the sum of its proper divisors (569384380).

1138768754 is an equidigital number, since it uses as much as digits as its factorization.

1138768754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569384379.

The product of its digits is 1128960, while the sum is 50.

The square root of 1138768754 is about 33745.6479268068. The cubic root of 1138768754 is about 1044.2677054806.

The spelling of 1138768754 in words is "one billion, one hundred thirty-eight million, seven hundred sixty-eight thousand, seven hundred fifty-four".