1321700 has 18 divisors (see below), whose sum is σ = 2868306. Its totient is φ = 528640.

The previous prime is 1321693. The next prime is 1321711. The reversal of 1321700 is 71231.

It can be written as a sum of positive squares in 3 ways, for example, as 53824 + 1267876 = 232^2 + 1126^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6509 + ... + 6708.

2^1321700 is an apocalyptic number.

1321700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321700 is an abundant number, since it is smaller than the sum of its proper divisors (1546606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321700 is a wasteful number, since it uses less digits than its factorization.

1321700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13231 (or 13224 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 1321700 is about 1149.6521212958. The cubic root of 1321700 is about 109.7432026204.

Adding to 1321700 its reverse (71231), we get a palindrome (1392931).

The spelling of 1321700 in words is "one million, three hundred twenty-one thousand, seven hundred".