1313073 has 6 divisors (see below), whose sum is σ = 1896674. Its totient is φ = 875376.

The previous prime is 1313069. The next prime is 1313083. The reversal of 1313073 is 3703131.

It can be written as a sum of positive squares in only one way, i.e., 1034289 + 278784 = 1017^2 + 528^2 .

It is not a de Polignac number, because 1313073 - 2² = 1313069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72940 + ... + 72957.

2^1313073 is an apocalyptic number.

It is an amenable number.

1313073 is a deficient number, since it is larger than the sum of its proper divisors (583601).

1313073 is a wasteful number, since it uses less digits than its factorization.

1313073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145903 (or 145900 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 18.

The square root of 1313073 is about 1145.8939741529. The cubic root of 1313073 is about 109.5039092868.

It can be divided in two parts, 13130 and 73, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 1313073 in words is "one million, three hundred thirteen thousand, seventy-three".