138313024 has 14 divisors (see below), whose sum is σ = 274465034. Its totient is φ = 69156480.

The previous prime is 138313009. The next prime is 138313039. The reversal of 138313024 is 420313831.

It is an interprime number because it is at equal distance from previous prime (138313009) and next prime (138313039).

It can be written as a sum of positive squares in only one way, i.e., 133818624 + 4494400 = 11568^2 + 2120^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 138313024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080507 + ... + 1080634.

Almost surely, 2^138313024 is an apocalyptic number.

It is an amenable number.

138313024 is a deficient number, since it is larger than the sum of its proper divisors (136152010).

138313024 is an equidigital number, since it uses as much as digits as its factorization.

138313024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161153 (or 2161143 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 138313024 is about 11760.6557640295. The cubic root of 138313024 is about 517.1553543953.

Adding to 138313024 its reverse (420313831), we get a palindrome (558626855).

The spelling of 138313024 in words is "one hundred thirty-eight million, three hundred thirteen thousand, twenty-four".