3540205144457 has 2 divisors, whose sum is σ = 3540205144458. Its totient is φ = 3540205144456.

The previous prime is 3540205144379. The next prime is 3540205144559. The reversal of 3540205144457 is 7544415020453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3531678284176 + 8526860281 = 1879276^2 + 92341^2 .

It is a cyclic number.

It is not a de Polignac number, because 3540205144457 - 2²⁰ = 3540204095881 is a prime.

It is not a weakly prime, because it can be changed into another prime (3540205144057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1770102572228 + 1770102572229.

It is an arithmetic number, because the mean of its divisors is an integer number (1770102572229).

Almost surely, 2^{3540205144457} is an apocalyptic number.

It is an amenable number.

3540205144457 is a deficient number, since it is larger than the sum of its proper divisors (1).

3540205144457 is an equidigital number, since it uses as much as digits as its factorization.

3540205144457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344000, while the sum is 44.

The spelling of 3540205144457 in words is "three trillion, five hundred forty billion, two hundred five million, one hundred forty-four thousand, four hundred fifty-seven".