1331199 has 12 divisors (see below), whose sum is σ = 1934712. Its totient is φ = 882000.

The previous prime is 1331153. The next prime is 1331207. The reversal of 1331199 is 9911331.

It is not a de Polignac number, because 1331199 - 2⁸ = 1330943 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 13 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1549 + ... + 2249.

It is an arithmetic number, because the mean of its divisors is an integer number (161226).

2^1331199 is an apocalyptic number.

1331199 is a deficient number, since it is larger than the sum of its proper divisors (603513).

1331199 is a wasteful number, since it uses less digits than its factorization.

1331199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918 (or 915 counting only the distinct ones).

The product of its digits is 729, while the sum is 27.

The square root of 1331199 is about 1153.7759747889. The cubic root of 1331199 is about 110.0054818205.

The spelling of 1331199 in words is "one million, three hundred thirty-one thousand, one hundred ninety-nine".