138519416 has 32 divisors (see below), whose sum is σ = 304854240. Its totient is φ = 57760128.

The previous prime is 138519413. The next prime is 138519419. The reversal of 138519416 is 614915831.

It is an interprime number because it is at equal distance from previous prime (138519413) and next prime (138519419).

It is a self number, because there is not a number n which added to its sum of digits gives 138519416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138519413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31355 + ... + 35498.

It is an arithmetic number, because the mean of its divisors is an integer number (9526695).

Almost surely, 2^138519416 is an apocalyptic number.

It is an amenable number.

138519416 is an abundant number, since it is smaller than the sum of its proper divisors (166334824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138519416 is a wasteful number, since it uses less digits than its factorization.

138519416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66903 (or 66899 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The square root of 138519416 is about 11769.4271738263. The cubic root of 138519416 is about 517.4124612524.

The spelling of 138519416 in words is "one hundred thirty-eight million, five hundred nineteen thousand, four hundred sixteen".