138002651 has 16 divisors (see below), whose sum is σ = 148976640. Its totient is φ = 127370880.

The previous prime is 138002633. The next prime is 138002687. The reversal of 138002651 is 156200831.

It is a cyclic number.

It is not a de Polignac number, because 138002651 - 2⁶ = 138002587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138002651.

It is not an unprimeable number, because it can be changed into a prime (138002251) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 283130 + ... + 283616.

It is an arithmetic number, because the mean of its divisors is an integer number (9311040).

Almost surely, 2^138002651 is an apocalyptic number.

138002651 is a deficient number, since it is larger than the sum of its proper divisors (10973989).

138002651 is a wasteful number, since it uses less digits than its factorization.

138002651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 138002651 is about 11747.4529579820. The cubic root of 138002651 is about 516.7682342582.

The spelling of 138002651 in words is "one hundred thirty-eight million, two thousand, six hundred fifty-one".