165430141 has 2 divisors, whose sum is σ = 165430142. Its totient is φ = 165430140.

The previous prime is 165430127. The next prime is 165430147. The reversal of 165430141 is 141034561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91968100 + 73462041 = 9590^2 + 8571^2 .

It is an emirp because it is prime and its reverse (141034561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165430141 - 2¹⁵ = 165397373 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165430147) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82715070 + 82715071.

It is an arithmetic number, because the mean of its divisors is an integer number (82715071).

Almost surely, 2^165430141 is an apocalyptic number.

It is an amenable number.

165430141 is a deficient number, since it is larger than the sum of its proper divisors (1).

165430141 is an equidigital number, since it uses as much as digits as its factorization.

165430141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 165430141 is about 12861.9648965467. The cubic root of 165430141 is about 548.9568558546.

The spelling of 165430141 in words is "one hundred sixty-five million, four hundred thirty thousand, one hundred forty-one".