140152169 has 2 divisors, whose sum is σ = 140152170. Its totient is φ = 140152168.

The previous prime is 140152121. The next prime is 140152183. The reversal of 140152169 is 961251041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107889769 + 32262400 = 10387^2 + 5680^2 .

It is an emirp because it is prime and its reverse (961251041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140152169 - 2¹⁶ = 140086633 is a prime.

It is a super-2 number, since 2×140152169² = 39285260950809122, which contains 22 as substring.

It is equal to p_7920308 and since 140152169 and 7920308 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (140152109) 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 as a sum of consecutive naturals, namely, 70076084 + 70076085.

It is an arithmetic number, because the mean of its divisors is an integer number (70076085).

Almost surely, 2^140152169 is an apocalyptic number.

It is an amenable number.

140152169 is a deficient number, since it is larger than the sum of its proper divisors (1).

140152169 is an equidigital number, since it uses as much as digits as its factorization.

140152169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 140152169 is about 11838.5881337261. The cubic root of 140152169 is about 519.4374698364.

The spelling of 140152169 in words is "one hundred forty million, one hundred fifty-two thousand, one hundred sixty-nine".