138327572 has 24 divisors (see below), whose sum is σ = 256714920. Its totient is φ = 64993280.

The previous prime is 138327559. The next prime is 138327587. The reversal of 138327572 is 275723831.

It can be written as a sum of positive squares in 4 ways, for example, as 37405456 + 100922116 = 6116^2 + 10046^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 58754 + ... + 61062.

It is an arithmetic number, because the mean of its divisors is an integer number (10696455).

Almost surely, 2^138327572 is an apocalyptic number.

It is an amenable number.

138327572 is a deficient number, since it is larger than the sum of its proper divisors (118387348).

138327572 is a wasteful number, since it uses less digits than its factorization.

138327572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211 (or 3209 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 138327572 is about 11761.2742506924. The cubic root of 138327572 is about 517.1734855206.

The spelling of 138327572 in words is "one hundred thirty-eight million, three hundred twenty-seven thousand, five hundred seventy-two".