1354261409 has 2 divisors, whose sum is σ = 1354261410. Its totient is φ = 1354261408.

The previous prime is 1354261399. The next prime is 1354261411. The reversal of 1354261409 is 9041624531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 752295184 + 601966225 = 27428^2 + 24535^2 .

It is a cyclic number.

It is not a de Polignac number, because 1354261409 - 2²⁸ = 1085825953 is a prime.

Together with 1354261411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1354261709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677130704 + 677130705.

It is an arithmetic number, because the mean of its divisors is an integer number (677130705).

Almost surely, 2^1354261409 is an apocalyptic number.

It is an amenable number.

1354261409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1354261409 is an equidigital number, since it uses as much as digits as its factorization.

1354261409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1354261409 is about 36800.2908820025. The cubic root of 1354261409 is about 1106.3711292391.

The spelling of 1354261409 in words is "one billion, three hundred fifty-four million, two hundred sixty-one thousand, four hundred nine".