138796651 has 16 divisors (see below), whose sum is σ = 165878784. Its totient is φ = 113550624.

The previous prime is 138796627. The next prime is 138796661. The reversal of 138796651 is 156697831.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 138796651 - 2¹¹ = 138794603 is a prime.

It is a Duffinian number.

Its product of digits (272160) is a multiple of the sum of its prime divisors (1890).

It is not an unprimeable number, because it can be changed into a prime (138796661) 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, 140706 + ... + 141688.

It is an arithmetic number, because the mean of its divisors is an integer number (10367424).

Almost surely, 2^138796651 is an apocalyptic number.

138796651 is a deficient number, since it is larger than the sum of its proper divisors (27082133).

138796651 is an equidigital number, since it uses as much as digits as its factorization.

138796651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890.

The product of its digits is 272160, while the sum is 46.

The square root of 138796651 is about 11781.1990476352. The cubic root of 138796651 is about 517.7574171113.

The spelling of 138796651 in words is "one hundred thirty-eight million, seven hundred ninety-six thousand, six hundred fifty-one".