13143902 has 32 divisors (see below), whose sum is σ = 21772800. Its totient is φ = 5930848.

The previous prime is 13143901. The next prime is 13143937. The reversal of 13143902 is 20934131.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143901) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 78623 + ... + 78789.

It is an arithmetic number, because the mean of its divisors is an integer number (680400).

Almost surely, 2^13143902 is an apocalyptic number.

13143902 is a deficient number, since it is larger than the sum of its proper divisors (8628898).

13143902 is a wasteful number, since it uses less digits than its factorization.

13143902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 13143902 is about 3625.4519718237. The cubic root of 13143902 is about 235.9978813369.

The spelling of 13143902 in words is "thirteen million, one hundred forty-three thousand, nine hundred two".