1306373 has 2 divisors, whose sum is σ = 1306374. Its totient is φ = 1306372.

The previous prime is 1306367. The next prime is 1306381. The reversal of 1306373 is 3736031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1304164 + 2209 = 1142^2 + 47^2 .

It is a cyclic number.

It is not a de Polignac number, because 1306373 - 2¹² = 1302277 is a prime.

It is a super-2 number, since 2×1306373² = 3413220830258, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1306313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653186 + 653187.

It is an arithmetic number, because the mean of its divisors is an integer number (653187).

2^1306373 is an apocalyptic number.

It is an amenable number.

1306373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306373 is an equidigital number, since it uses as much as digits as its factorization.

1306373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 23.

The square root of 1306373 is about 1142.9667536722. The cubic root of 1306373 is about 109.3173424544.

The spelling of 1306373 in words is "one million, three hundred six thousand, three hundred seventy-three".