1339775947 has 2 divisors, whose sum is σ = 1339775948. Its totient is φ = 1339775946.

The previous prime is 1339775929. The next prime is 1339775977. The reversal of 1339775947 is 7495779331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1339775947 - 2¹⁵ = 1339743179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1339775917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669887973 + 669887974.

It is an arithmetic number, because the mean of its divisors is an integer number (669887974).

Almost surely, 2^1339775947 is an apocalyptic number.

1339775947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1339775947 is an equidigital number, since it uses as much as digits as its factorization.

1339775947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5000940, while the sum is 55.

The square root of 1339775947 is about 36602.9499767437. The cubic root of 1339775947 is about 1102.4123221153.

The spelling of 1339775947 in words is "one billion, three hundred thirty-nine million, seven hundred seventy-five thousand, nine hundred forty-seven".