138571248 has 20 divisors (see below), whose sum is σ = 357975848. Its totient is φ = 46190400.

The previous prime is 138571229. The next prime is 138571249. The reversal of 138571248 is 842175831.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138571249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443403 + ... + 1443498.

Almost surely, 2^138571248 is an apocalyptic number.

It is an amenable number.

138571248 is an abundant number, since it is smaller than the sum of its proper divisors (219404600).

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

138571248 is a wasteful number, since it uses less digits than its factorization.

138571248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886912 (or 2886906 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 138571248 is about 11771.6289442031. The cubic root of 138571248 is about 517.4769893383.

The spelling of 138571248 in words is "one hundred thirty-eight million, five hundred seventy-one thousand, two hundred forty-eight".