1147045 has 4 divisors (see below), whose sum is σ = 1376460. Its totient is φ = 917632.

The previous prime is 1147043. The next prime is 1147051. The reversal of 1147045 is 5407411.

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

It can be written as a sum of positive squares in 2 ways, for example, as 410881 + 736164 = 641^2 + 858^2 .

It is a cyclic number.

It is not a de Polignac number, because 1147045 - 2¹ = 1147043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114700 + ... + 114709.

It is an arithmetic number, because the mean of its divisors is an integer number (344115).

2^1147045 is an apocalyptic number.

It is an amenable number.

1147045 is a deficient number, since it is larger than the sum of its proper divisors (229415).

1147045 is an equidigital number, since it uses as much as digits as its factorization.

1147045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229414.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 1147045 is about 1071.0018674120. The cubic root of 1147045 is about 104.6791414578.

The spelling of 1147045 in words is "one million, one hundred forty-seven thousand, forty-five".