1340241853 has 2 divisors, whose sum is σ = 1340241854. Its totient is φ = 1340241852.

The previous prime is 1340241781. The next prime is 1340241857. The reversal of 1340241853 is 3581420431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1338608569 + 1633284 = 36587^2 + 1278^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340241853 - 2⁹ = 1340241341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340241857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670120926 + 670120927.

It is an arithmetic number, because the mean of its divisors is an integer number (670120927).

Almost surely, 2^1340241853 is an apocalyptic number.

It is an amenable number.

1340241853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340241853 is an equidigital number, since it uses as much as digits as its factorization.

1340241853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1340241853 is about 36609.3137466410. The cubic root of 1340241853 is about 1102.5400949694.

It can be divided in two parts, 13402 and 41853, that added together give a palindrome (55255).

The spelling of 1340241853 in words is "one billion, three hundred forty million, two hundred forty-one thousand, eight hundred fifty-three".