1353947 has 8 divisors (see below), whose sum is σ = 1560576. Its totient is φ = 1150632.

The previous prime is 1353917. The next prime is 1353949. The reversal of 1353947 is 7493531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1353947 - 2¹⁴ = 1337563 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1353949) 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 in 7 ways as a sum of consecutive naturals, for example, 128 + ... + 1650.

It is an arithmetic number, because the mean of its divisors is an integer number (195072).

2^1353947 is an apocalyptic number.

1353947 is a deficient number, since it is larger than the sum of its proper divisors (206629).

1353947 is a wasteful number, since it uses less digits than its factorization.

1353947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657.

The product of its digits is 11340, while the sum is 32.

The square root of 1353947 is about 1163.5922825457. The cubic root of 1353947 is about 110.6285503239.

The spelling of 1353947 in words is "one million, three hundred fifty-three thousand, nine hundred forty-seven".