1340313173 has 2 divisors, whose sum is σ = 1340313174. Its totient is φ = 1340313172.

The previous prime is 1340313151. The next prime is 1340313193. The reversal of 1340313173 is 3713130431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1331301169 + 9012004 = 36487^2 + 3002^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340313173 - 2²² = 1336118869 is a prime.

It is a super-4 number, since 4×1340313173⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340313103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670156586 + 670156587.

It is an arithmetic number, because the mean of its divisors is an integer number (670156587).

Almost surely, 2^1340313173 is an apocalyptic number.

It is an amenable number.

1340313173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340313173 is an equidigital number, since it uses as much as digits as its factorization.

1340313173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 1340313173 is about 36610.2878027475. The cubic root of 1340313173 is about 1102.5596515802.

The spelling of 1340313173 in words is "one billion, three hundred forty million, three hundred thirteen thousand, one hundred seventy-three".