1353973 has 2 divisors, whose sum is σ = 1353974. Its totient is φ = 1353972.

The previous prime is 1353967. The next prime is 1353977. The reversal of 1353973 is 3793531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1306449 + 47524 = 1143^2 + 218^2 .

It is a cyclic number.

It is not a de Polignac number, because 1353973 - 2¹³ = 1345781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1353977) 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, 676986 + 676987.

It is an arithmetic number, because the mean of its divisors is an integer number (676987).

2^1353973 is an apocalyptic number.

It is an amenable number.

1353973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1353973 is an equidigital number, since it uses as much as digits as its factorization.

1353973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8505, while the sum is 31.

The square root of 1353973 is about 1163.6034547903. The cubic root of 1353973 is about 110.6292584569.

The spelling of 1353973 in words is "one million, three hundred fifty-three thousand, nine hundred seventy-three".