13020236 has 6 divisors (see below), whose sum is σ = 22785420. Its totient is φ = 6510116.

The previous prime is 13020233. The next prime is 13020251. The reversal of 13020236 is 63202031.

It is not an unprimeable number, because it can be changed into a prime (13020233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1627526 + ... + 1627533.

It is an arithmetic number, because the mean of its divisors is an integer number (3797570).

Almost surely, 2^13020236 is an apocalyptic number.

It is an amenable number.

13020236 is a deficient number, since it is larger than the sum of its proper divisors (9765184).

13020236 is a wasteful number, since it uses less digits than its factorization.

13020236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255063 (or 3255061 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 13020236 is about 3608.3564125513. The cubic root of 13020236 is about 235.2554096472.

Adding to 13020236 its reverse (63202031), we get a palindrome (76222267).

The spelling of 13020236 in words is "thirteen million, twenty thousand, two hundred thirty-six".