1353949 has 2 divisors, whose sum is σ = 1353950. Its totient is φ = 1353948.

The previous prime is 1353917. The next prime is 1353967. The reversal of 1353949 is 9493531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 842724 + 511225 = 918^2 + 715^2 .

It is a cyclic number.

It is not a de Polignac number, because 1353949 - 2⁵ = 1353917 is a prime.

1353949 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1353449) 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, 676974 + 676975.

It is an arithmetic number, because the mean of its divisors is an integer number (676975).

2^1353949 is an apocalyptic number.

It is an amenable number.

1353949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1353949 is an equidigital number, since it uses as much as digits as its factorization.

1353949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 34.

The square root of 1353949 is about 1163.5931419530. The cubic root of 1353949 is about 110.6286047960.

The spelling of 1353949 in words is "one million, three hundred fifty-three thousand, nine hundred forty-nine".