1354649 has 2 divisors, whose sum is σ = 1354650. Its totient is φ = 1354648.

The previous prime is 1354637. The next prime is 1354651. The reversal of 1354649 is 9464531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1194649 + 160000 = 1093^2 + 400^2 .

It is a cyclic number.

It is not a de Polignac number, because 1354649 - 2⁸ = 1354393 is a prime.

Together with 1354651, 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 (1354349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677324 + 677325.

It is an arithmetic number, because the mean of its divisors is an integer number (677325).

2^1354649 is an apocalyptic number.

It is an amenable number.

1354649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1354649 is an equidigital number, since it uses as much as digits as its factorization.

1354649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 1354649 is about 1163.8938955077. The cubic root of 1354649 is about 110.6476667354.

The spelling of 1354649 in words is "one million, three hundred fifty-four thousand, six hundred forty-nine".