151965169 has 2 divisors, whose sum is σ = 151965170. Its totient is φ = 151965168.

The previous prime is 151965137. The next prime is 151965181. The reversal of 151965169 is 961569151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150994944 + 970225 = 12288^2 + 985^2 .

It is an emirp because it is prime and its reverse (961569151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151965169 - 2⁵ = 151965137 is a prime.

It is a super-2 number, since 2×151965169² = 46186825178397122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (151962169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75982584 + 75982585.

It is an arithmetic number, because the mean of its divisors is an integer number (75982585).

Almost surely, 2^151965169 is an apocalyptic number.

It is an amenable number.

151965169 is a deficient number, since it is larger than the sum of its proper divisors (1).

151965169 is an equidigital number, since it uses as much as digits as its factorization.

151965169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72900, while the sum is 43.

The square root of 151965169 is about 12327.4153414250. The cubic root of 151965169 is about 533.6395621137.

The spelling of 151965169 in words is "one hundred fifty-one million, nine hundred sixty-five thousand, one hundred sixty-nine".