138975352 has 8 divisors (see below), whose sum is σ = 260578800. Its totient is φ = 69487672.

The previous prime is 138975313. The next prime is 138975371. The reversal of 138975352 is 253579831.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 138975299 and 138975308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8685952 + ... + 8685967.

It is an arithmetic number, because the mean of its divisors is an integer number (32572350).

Almost surely, 2^138975352 is an apocalyptic number.

It is an amenable number.

138975352 is a deficient number, since it is larger than the sum of its proper divisors (121603448).

138975352 is a wasteful number, since it uses less digits than its factorization.

138975352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17371925 (or 17371921 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The square root of 138975352 is about 11788.7807681711. The cubic root of 138975352 is about 517.9795264290.

The spelling of 138975352 in words is "one hundred thirty-eight million, nine hundred seventy-five thousand, three hundred fifty-two".