138600651 has 8 divisors (see below), whose sum is σ = 211201024. Its totient is φ = 79200360.

The previous prime is 138600629. The next prime is 138600661. The reversal of 138600651 is 156006831.

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

It is not a de Polignac number, because 138600651 - 2⁵ = 138600619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138600661) 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, 3299995 + ... + 3300036.

It is an arithmetic number, because the mean of its divisors is an integer number (26400128).

Almost surely, 2^138600651 is an apocalyptic number.

138600651 is a deficient number, since it is larger than the sum of its proper divisors (72600373).

138600651 is an equidigital number, since it uses as much as digits as its factorization.

138600651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6600041.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 138600651 is about 11772.8777705368. The cubic root of 138600651 is about 517.5135873582.

The spelling of 138600651 in words is "one hundred thirty-eight million, six hundred thousand, six hundred fifty-one".