138507027 has 8 divisors (see below), whose sum is σ = 187703760. Its totient is φ = 90824160.

The previous prime is 138507011. The next prime is 138507037. The reversal of 138507027 is 720705831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138507027 - 2⁴ = 138507011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138507037) 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, 378252 + ... + 378617.

It is an arithmetic number, because the mean of its divisors is an integer number (23462970).

Almost surely, 2^138507027 is an apocalyptic number.

138507027 is a deficient number, since it is larger than the sum of its proper divisors (49196733).

138507027 is an equidigital number, since it uses as much as digits as its factorization.

138507027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756933.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 138507027 is about 11768.9008407752. The cubic root of 138507027 is about 517.3970352221.

The spelling of 138507027 in words is "one hundred thirty-eight million, five hundred seven thousand, twenty-seven".