1353273647 has 4 divisors (see below), whose sum is σ = 1476298536. Its totient is φ = 1230248760.

The previous prime is 1353273641. The next prime is 1353273667. The reversal of 1353273647 is 7463723531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1353273647 - 2¹⁸ = 1353011503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1353273641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61512428 + ... + 61512449.

It is an arithmetic number, because the mean of its divisors is an integer number (369074634).

Almost surely, 2^1353273647 is an apocalyptic number.

1353273647 is a deficient number, since it is larger than the sum of its proper divisors (123024889).

1353273647 is a wasteful number, since it uses less digits than its factorization.

1353273647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123024888.

The product of its digits is 317520, while the sum is 41.

The square root of 1353273647 is about 36786.8678606918. The cubic root of 1353273647 is about 1106.1020779925.

The spelling of 1353273647 in words is "one billion, three hundred fifty-three million, two hundred seventy-three thousand, six hundred forty-seven".