138804151 has 2 divisors, whose sum is σ = 138804152. Its totient is φ = 138804150.

The previous prime is 138804109. The next prime is 138804157. The reversal of 138804151 is 151408831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138804151 - 2⁷ = 138804023 is a prime.

It is equal to p_7848310 and since 138804151 and 7848310 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138804157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69402075 + 69402076.

It is an arithmetic number, because the mean of its divisors is an integer number (69402076).

Almost surely, 2^138804151 is an apocalyptic number.

138804151 is a deficient number, since it is larger than the sum of its proper divisors (1).

138804151 is an equidigital number, since it uses as much as digits as its factorization.

138804151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 138804151 is about 11781.5173470992. The cubic root of 138804151 is about 517.7667427702.

The spelling of 138804151 in words is "one hundred thirty-eight million, eight hundred four thousand, one hundred fifty-one".