1331902 has 16 divisors (see below), whose sum is σ = 2347632. Its totient is φ = 558720.

The previous prime is 1331857. The next prime is 1331921. The reversal of 1331902 is 2091331.

It is a self number, because there is not a number n which added to its sum of digits gives 1331902.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2043 + ... + 2614.

It is an arithmetic number, because the mean of its divisors is an integer number (146727).

2^1331902 is an apocalyptic number.

1331902 is a deficient number, since it is larger than the sum of its proper divisors (1015730).

1331902 is a wasteful number, since it uses less digits than its factorization.

1331902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4683.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1331902 is about 1154.0805864410. The cubic root of 1331902 is about 110.0248428738.

The spelling of 1331902 in words is "one million, three hundred thirty-one thousand, nine hundred two".