161027523 has 6 divisors (see below), whose sum is σ = 232595324. Its totient is φ = 107351676.

The previous prime is 161027507. The next prime is 161027539. The reversal of 161027523 is 325720161.

It is a happy number.

161027523 is a `hidden beast` number, since 1 + 610 + 27 + 5 + 23 = 666.

It is an interprime number because it is at equal distance from previous prime (161027507) and next prime (161027539).

It is not a de Polignac number, because 161027523 - 2⁴ = 161027507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161027543) 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 in 5 ways as a sum of consecutive naturals, for example, 8945965 + ... + 8945982.

Almost surely, 2^161027523 is an apocalyptic number.

161027523 is a deficient number, since it is larger than the sum of its proper divisors (71567801).

161027523 is a wasteful number, since it uses less digits than its factorization.

161027523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17891953 (or 17891950 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 161027523 is about 12689.6620522376. The cubic root of 161027523 is about 544.0431804590.

Adding to 161027523 its reverse (325720161), we get a palindrome (486747684).

The spelling of 161027523 in words is "one hundred sixty-one million, twenty-seven thousand, five hundred twenty-three".