1340175349 has 2 divisors, whose sum is σ = 1340175350. Its totient is φ = 1340175348.

The previous prime is 1340175337. The next prime is 1340175371. The reversal of 1340175349 is 9435710431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1189008324 + 151167025 = 34482^2 + 12295^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340175349 - 2⁹ = 1340174837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340175379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670087674 + 670087675.

It is an arithmetic number, because the mean of its divisors is an integer number (670087675).

Almost surely, 2^1340175349 is an apocalyptic number.

It is an amenable number.

1340175349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340175349 is an equidigital number, since it uses as much as digits as its factorization.

1340175349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 1340175349 is about 36608.4054419200. The cubic root of 1340175349 is about 1102.5218583258.

The spelling of 1340175349 in words is "one billion, three hundred forty million, one hundred seventy-five thousand, three hundred forty-nine".