1340995093 has 2 divisors, whose sum is σ = 1340995094. Its totient is φ = 1340995092.

The previous prime is 1340995087. The next prime is 1340995121. The reversal of 1340995093 is 3905990431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 789778609 + 551216484 = 28103^2 + 23478^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340995093 - 2⁹ = 1340994581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340995193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670497546 + 670497547.

It is an arithmetic number, because the mean of its divisors is an integer number (670497547).

Almost surely, 2^1340995093 is an apocalyptic number.

It is an amenable number.

1340995093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340995093 is an equidigital number, since it uses as much as digits as its factorization.

1340995093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 131220, while the sum is 43.

The square root of 1340995093 is about 36619.5998476226. The cubic root of 1340995093 is about 1102.7466054006.

The spelling of 1340995093 in words is "one billion, three hundred forty million, nine hundred ninety-five thousand, ninety-three".