13144402 has 8 divisors (see below), whose sum is σ = 20040012. Its totient is φ = 6464400.

The previous prime is 13144393. The next prime is 13144423. The reversal of 13144402 is 20444131.

13144402 is nontrivially palindromic in base 11.

It can be written as a sum of positive squares in 2 ways, for example, as 13111641 + 32761 = 3621^2 + 181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13144402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53749 + ... + 53992.

Almost surely, 2^13144402 is an apocalyptic number.

13144402 is a deficient number, since it is larger than the sum of its proper divisors (6895610).

13144402 is a wasteful number, since it uses less digits than its factorization.

13144402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107804.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 13144402 is about 3625.5209280874. The cubic root of 13144402 is about 236.0008737878. Note that the first 3 decimals are identical.

Adding to 13144402 its reverse (20444131), we get a palindrome (33588533).

The spelling of 13144402 in words is "thirteen million, one hundred forty-four thousand, four hundred two".