163156369 has 2 divisors, whose sum is σ = 163156370. Its totient is φ = 163156368.

The previous prime is 163156351. The next prime is 163156373. The reversal of 163156369 is 963651361.

163156369 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162180225 + 976144 = 12735^2 + 988^2 .

It is a cyclic number.

It is not a de Polignac number, because 163156369 - 2⁹ = 163155857 is a prime.

It is a super-2 number, since 2×163156369² = 53240001490528322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (163156339) 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 as a sum of consecutive naturals, namely, 81578184 + 81578185.

It is an arithmetic number, because the mean of its divisors is an integer number (81578185).

Almost surely, 2^163156369 is an apocalyptic number.

It is an amenable number.

163156369 is a deficient number, since it is larger than the sum of its proper divisors (1).

163156369 is an equidigital number, since it uses as much as digits as its factorization.

163156369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 40.

The square root of 163156369 is about 12773.2677494837. The cubic root of 163156369 is about 546.4301790823.

The spelling of 163156369 in words is "one hundred sixty-three million, one hundred fifty-six thousand, three hundred sixty-nine".