1138499512 has 16 divisors (see below), whose sum is σ = 2143851840. Its totient is φ = 566805696.

The previous prime is 1138499507. The next prime is 1138499539. The reversal of 1138499512 is 2159948311.

It is a super-2 number, since 2×1138499512² = 2592362277648476288, which contains 22 as substring.

It is a congruent number.

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, 303528 + ... + 307255.

It is an arithmetic number, because the mean of its divisors is an integer number (133990740).

Almost surely, 2^1138499512 is an apocalyptic number.

It is an amenable number.

1138499512 is a deficient number, since it is larger than the sum of its proper divisors (1005352328).

1138499512 is a wasteful number, since it uses less digits than its factorization.

1138499512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611022 (or 611018 counting only the distinct ones).

The product of its digits is 77760, while the sum is 43.

The square root of 1138499512 is about 33741.6584061898. The cubic root of 1138499512 is about 1044.1853993683.

The spelling of 1138499512 in words is "one billion, one hundred thirty-eight million, four hundred ninety-nine thousand, five hundred twelve".