138527248 has 40 divisors (see below), whose sum is σ = 274000320. Its totient is φ = 67831680.

The previous prime is 138527243. The next prime is 138527267. The reversal of 138527248 is 842725831.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 138527248.

It is not an unprimeable number, because it can be changed into a prime (138527243) 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 7 ways as a sum of consecutive naturals, for example, 223483 + ... + 224101.

It is an arithmetic number, because the mean of its divisors is an integer number (6850008).

Almost surely, 2^138527248 is an apocalyptic number.

It is an amenable number.

138527248 is a deficient number, since it is larger than the sum of its proper divisors (135473072).

138527248 is a wasteful number, since it uses less digits than its factorization.

138527248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 889 counting only the distinct ones).

The product of its digits is 107520, while the sum is 40.

The square root of 138527248 is about 11769.7598955969. The cubic root of 138527248 is about 517.4222127085.

The spelling of 138527248 in words is "one hundred thirty-eight million, five hundred twenty-seven thousand, two hundred forty-eight".