165141523 has 2 divisors, whose sum is σ = 165141524. Its totient is φ = 165141522.

The previous prime is 165141499. The next prime is 165141577. The reversal of 165141523 is 325141561.

It is a weak prime.

It is an emirp because it is prime and its reverse (325141561) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165141523 is a prime.

It is equal to p_9246421 and since 165141523 and 9246421 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 165141491 and 165141500.

It is not a weakly prime, because it can be changed into another prime (165141623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82570761 + 82570762.

It is an arithmetic number, because the mean of its divisors is an integer number (82570762).

Almost surely, 2^165141523 is an apocalyptic number.

165141523 is a deficient number, since it is larger than the sum of its proper divisors (1).

165141523 is an equidigital number, since it uses as much as digits as its factorization.

165141523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 28.

The square root of 165141523 is about 12850.7401732352. The cubic root of 165141523 is about 548.6374238203.

The spelling of 165141523 in words is "one hundred sixty-five million, one hundred forty-one thousand, five hundred twenty-three".