12162553 has 4 divisors (see below), whose sum is σ = 13098148. Its totient is φ = 11226960.

The previous prime is 12162541. The next prime is 12162559. The reversal of 12162553 is 35526121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35526121 = 1471 ⋅24151.

It can be written as a sum of positive squares in 2 ways, for example, as 7634169 + 4528384 = 2763^2 + 2128^2 .

It is a cyclic number.

It is not a de Polignac number, because 12162553 - 2²¹ = 10065401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12162559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467778 + ... + 467803.

It is an arithmetic number, because the mean of its divisors is an integer number (3274537).

Almost surely, 2^12162553 is an apocalyptic number.

12162553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12162553 is a deficient number, since it is larger than the sum of its proper divisors (935595).

12162553 is an equidigital number, since it uses as much as digits as its factorization.

12162553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935594.

The product of its digits is 1800, while the sum is 25.

The square root of 12162553 is about 3487.4851971012. The cubic root of 12162553 is about 229.9719751613.

Adding to 12162553 its reverse (35526121), we get a palindrome (47688674).

The spelling of 12162553 in words is "twelve million, one hundred sixty-two thousand, five hundred fifty-three".