138719248 has 20 divisors (see below), whose sum is σ = 269389008. Its totient is φ = 69199520.

The previous prime is 138719239. The next prime is 138719249. The reversal of 138719248 is 842917831.

It is not an unprimeable number, because it can be changed into a prime (138719249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2698 + ... + 16873.

Almost surely, 2^138719248 is an apocalyptic number.

It is an amenable number.

138719248 is a deficient number, since it is larger than the sum of its proper divisors (130669760).

138719248 is a wasteful number, since it uses less digits than its factorization.

138719248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20022 (or 20016 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 138719248 is about 11777.9135673514. The cubic root of 138719248 is about 517.6611529504.

The spelling of 138719248 in words is "one hundred thirty-eight million, seven hundred nineteen thousand, two hundred forty-eight".