1350205979 has 4 divisors (see below), whose sum is σ = 1351016640. Its totient is φ = 1349395320.

The previous prime is 1350205937. The next prime is 1350205981. The reversal of 1350205979 is 9795020531.

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 1350205979 - 2²⁴ = 1333428763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1350205919) 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 3 ways as a sum of consecutive naturals, for example, 402827 + ... + 406164.

It is an arithmetic number, because the mean of its divisors is an integer number (337754160).

Almost surely, 2^1350205979 is an apocalyptic number.

1350205979 is a deficient number, since it is larger than the sum of its proper divisors (810661).

1350205979 is an equidigital number, since it uses as much as digits as its factorization.

1350205979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810660.

The product of its (nonzero) digits is 85050, while the sum is 41.

The square root of 1350205979 is about 36745.1490539908. The cubic root of 1350205979 is about 1105.2656565946.

The spelling of 1350205979 in words is "one billion, three hundred fifty million, two hundred five thousand, nine hundred seventy-nine".