1320753199 has 4 divisors (see below), whose sum is σ = 1328050360. Its totient is φ = 1313456040.

The previous prime is 1320753197. The next prime is 1320753209. The reversal of 1320753199 is 9913570231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1320753199 - 2¹ = 1320753197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320753193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3648309 + ... + 3648670.

It is an arithmetic number, because the mean of its divisors is an integer number (332012590).

Almost surely, 2^1320753199 is an apocalyptic number.

1320753199 is a deficient number, since it is larger than the sum of its proper divisors (7297161).

1320753199 is an equidigital number, since it uses as much as digits as its factorization.

1320753199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7297160.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 1320753199 is about 36342.1683310173. The cubic root of 1320753199 is about 1097.1699147950.

The spelling of 1320753199 in words is "one billion, three hundred twenty million, seven hundred fifty-three thousand, one hundred ninety-nine".