1391364965 has 16 divisors (see below), whose sum is σ = 1759060800. Its totient is φ = 1053580032.

The previous prime is 1391364937. The next prime is 1391365007. The reversal of 1391364965 is 5694631931.

It is a cyclic number.

It is not a de Polignac number, because 1391364965 - 2⁶ = 1391364901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113789 + ... + 125421.

It is an arithmetic number, because the mean of its divisors is an integer number (109941300).

Almost surely, 2^1391364965 is an apocalyptic number.

It is an amenable number.

1391364965 is a deficient number, since it is larger than the sum of its proper divisors (367695835).

1391364965 is a wasteful number, since it uses less digits than its factorization.

1391364965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12916.

The product of its digits is 524880, while the sum is 47.

The square root of 1391364965 is about 37301.0048792254. The cubic root of 1391364965 is about 1116.3842166252.

The spelling of 1391364965 in words is "one billion, three hundred ninety-one million, three hundred sixty-four thousand, nine hundred sixty-five".