13203146 has 24 divisors (see below), whose sum is σ = 22261824. Its totient is φ = 5821760.

The previous prime is 13203139. The next prime is 13203167. The reversal of 13203146 is 64130231.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116786 + ... + 116898.

It is an arithmetic number, because the mean of its divisors is an integer number (927576).

Almost surely, 2^13203146 is an apocalyptic number.

13203146 is a deficient number, since it is larger than the sum of its proper divisors (9058678).

13203146 is a wasteful number, since it uses less digits than its factorization.

13203146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 13203146 is about 3633.6133531239. The cubic root of 13203146 is about 236.3519239579.

Adding to 13203146 its reverse (64130231), we get a palindrome (77333377).

The spelling of 13203146 in words is "thirteen million, two hundred three thousand, one hundred forty-six".