12152196169 has 3 divisors (see below), whose sum is σ = 12152306407. Its totient is φ = 12152085932.

The previous prime is 12152196127. The next prime is 12152196227. The reversal of 12152196169 is 96169125121.

The square root of 12152196169 is 110237.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 96169125121 = 55487 ⋅1733183.

It can be written as a sum of positive squares in only one way, i.e., 11855943225 + 296252944 = 108885^2 + 17212^2 .

It is not a de Polignac number, because 12152196169 - 2³¹ = 10004712521 is a prime.

It is a super-2 number, since 2×12152196169² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12152196869) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 55119 + ... + 165355.

Almost surely, 2^12152196169 is an apocalyptic number.

12152196169 is the 110237-th square number.

12152196169 is the 55119-th centered octagonal number.

It is an amenable number.

12152196169 is a deficient number, since it is larger than the sum of its proper divisors (110238).

12152196169 is an frugal number, since it uses more digits than its factorization.

12152196169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220474 (or 110237 counting only the distinct ones).

The product of its digits is 58320, while the sum is 43.

It can be divided in two parts, 12152196 and 169, that multiplied together give a square (2053721124 = 45318²).

The spelling of 12152196169 in words is "twelve billion, one hundred fifty-two million, one hundred ninety-six thousand, one hundred sixty-nine".