1307965 has 4 divisors (see below), whose sum is σ = 1569564. Its totient is φ = 1046368.

The previous prime is 1307951. The next prime is 1307981. The reversal of 1307965 is 5697031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5697031 = 23 ⋅247697.

It can be written as a sum of positive squares in 2 ways, for example, as 558009 + 749956 = 747^2 + 866^2 .

It is a cyclic number.

It is not a de Polignac number, because 1307965 - 2¹⁹ = 783677 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

1307965 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130792 + ... + 130801.

It is an arithmetic number, because the mean of its divisors is an integer number (392391).

2^1307965 is an apocalyptic number.

It is an amenable number.

1307965 is a deficient number, since it is larger than the sum of its proper divisors (261599).

1307965 is an equidigital number, since it uses as much as digits as its factorization.

1307965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261598.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 1307965 is about 1143.6629748313. The cubic root of 1307965 is about 109.3617306351.

The spelling of 1307965 in words is "one million, three hundred seven thousand, nine hundred sixty-five".