12353402 has 4 divisors (see below), whose sum is σ = 18530106. Its totient is φ = 6176700.

The previous prime is 12353389. The next prime is 12353437. The reversal of 12353402 is 20435321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20435321 = 853 ⋅23957.

It can be written as a sum of positive squares in only one way, i.e., 7295401 + 5058001 = 2701^2 + 2249^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3088349 + ... + 3088352.

Almost surely, 2^12353402 is an apocalyptic number.

12353402 is a deficient number, since it is larger than the sum of its proper divisors (6176704).

12353402 is an equidigital number, since it uses as much as digits as its factorization.

12353402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6176703.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 12353402 is about 3514.7406732219. The cubic root of 12353402 is about 231.1686081228.

Adding to 12353402 its reverse (20435321), we get a palindrome (32788723).

The spelling of 12353402 in words is "twelve million, three hundred fifty-three thousand, four hundred two".