1340554093 has 2 divisors, whose sum is σ = 1340554094. Its totient is φ = 1340554092.

The previous prime is 1340554073. The next prime is 1340554109. The reversal of 1340554093 is 3904550431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1039288644 + 301265449 = 32238^2 + 17357^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340554093 - 2¹³ = 1340545901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340554013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670277046 + 670277047.

It is an arithmetic number, because the mean of its divisors is an integer number (670277047).

Almost surely, 2^1340554093 is an apocalyptic number.

It is an amenable number.

1340554093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340554093 is an equidigital number, since it uses as much as digits as its factorization.

1340554093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 1340554093 is about 36613.5779868617. The cubic root of 1340554093 is about 1102.6257089671.

The spelling of 1340554093 in words is "one billion, three hundred forty million, five hundred fifty-four thousand, ninety-three".