138325651 has 16 divisors (see below), whose sum is σ = 148832640. Its totient is φ = 128103040.

The previous prime is 138325633. The next prime is 138325667. The reversal of 138325651 is 156523831.

It is a cyclic number.

It is not a de Polignac number, because 138325651 - 2¹⁵ = 138292883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138325951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398460 + ... + 398806.

It is an arithmetic number, because the mean of its divisors is an integer number (9302040).

Almost surely, 2^138325651 is an apocalyptic number.

138325651 is a deficient number, since it is larger than the sum of its proper divisors (10506989).

138325651 is a wasteful number, since it uses less digits than its factorization.

138325651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674.

The product of its digits is 21600, while the sum is 34.

The square root of 138325651 is about 11761.1925840877. The cubic root of 138325651 is about 517.1710914574.

The spelling of 138325651 in words is "one hundred thirty-eight million, three hundred twenty-five thousand, six hundred fifty-one".