1339775965 has 16 divisors (see below), whose sum is σ = 1765670400. Its totient is φ = 967837120.

The previous prime is 1339775947. The next prime is 1339775977. The reversal of 1339775965 is 5695779331.

It is a happy number.

It is not a de Polignac number, because 1339775965 - 2¹¹ = 1339773917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73549 + ... + 89938.

It is an arithmetic number, because the mean of its divisors is an integer number (110354400).

Almost surely, 2^1339775965 is an apocalyptic number.

It is an amenable number.

1339775965 is a deficient number, since it is larger than the sum of its proper divisors (425894435).

1339775965 is a wasteful number, since it uses less digits than its factorization.

1339775965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163652.

The product of its digits is 5358150, while the sum is 55.

The square root of 1339775965 is about 36602.9502226255. The cubic root of 1339775965 is about 1102.4123270523.

The spelling of 1339775965 in words is "one billion, three hundred thirty-nine million, seven hundred seventy-five thousand, nine hundred sixty-five".