1147385 has 16 divisors (see below), whose sum is σ = 1466640. Its totient is φ = 860160.

The previous prime is 1147379. The next prime is 1147387. The reversal of 1147385 is 5837411.

It can be written as a sum of positive squares in 8 ways, for example, as 241081 + 906304 = 491^2 + 952^2 .

It is not a de Polignac number, because 1147385 - 2²⁰ = 98809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1147387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5849 + ... + 6041.

It is an arithmetic number, because the mean of its divisors is an integer number (91665).

2^1147385 is an apocalyptic number.

It is an amenable number.

1147385 is a deficient number, since it is larger than the sum of its proper divisors (319255).

1147385 is a wasteful number, since it uses less digits than its factorization.

1147385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268.

The product of its digits is 3360, while the sum is 29.

The square root of 1147385 is about 1071.1605855333. The cubic root of 1147385 is about 104.6894832178.

The spelling of 1147385 in words is "one million, one hundred forty-seven thousand, three hundred eighty-five".