163523137 has 2 divisors, whose sum is σ = 163523138. Its totient is φ = 163523136.

The previous prime is 163523117. The next prime is 163523147. The reversal of 163523137 is 731325361.

163523137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97002801 + 66520336 = 9849^2 + 8156^2 .

It is a cyclic number.

It is not a de Polignac number, because 163523137 - 2¹¹ = 163521089 is a prime.

It is a super-3 number, since 3×163523137³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 163523099 and 163523108.

It is not a weakly prime, because it can be changed into another prime (163523117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81761568 + 81761569.

It is an arithmetic number, because the mean of its divisors is an integer number (81761569).

Almost surely, 2^163523137 is an apocalyptic number.

It is an amenable number.

163523137 is a deficient number, since it is larger than the sum of its proper divisors (1).

163523137 is an equidigital number, since it uses as much as digits as its factorization.

163523137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 31.

The square root of 163523137 is about 12787.6165488335. The cubic root of 163523137 is about 546.8393226118.

Adding to 163523137 its reverse (731325361), we get a palindrome (894848498).

The spelling of 163523137 in words is "one hundred sixty-three million, five hundred twenty-three thousand, one hundred thirty-seven".