1327145 has 8 divisors (see below), whose sum is σ = 1598856. Its totient is φ = 1057536.

The previous prime is 1327133. The next prime is 1327147. The reversal of 1327145 is 5417231.

It can be written as a sum of positive squares in 4 ways, for example, as 90601 + 1236544 = 301^2 + 1112^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1327145 - 2⁸ = 1326889 is a prime.

It is a super-2 number, since 2×1327145² = 3522627702050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1327145.

It is not an unprimeable number, because it can be changed into a prime (1327147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1859 + ... + 2471.

It is an arithmetic number, because the mean of its divisors is an integer number (199857).

2^1327145 is an apocalyptic number.

It is an amenable number.

1327145 is a deficient number, since it is larger than the sum of its proper divisors (271711).

1327145 is an equidigital number, since it uses as much as digits as its factorization.

1327145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051.

The product of its digits is 840, while the sum is 23.

The square root of 1327145 is about 1152.0177950014. The cubic root of 1327145 is about 109.8936989595.

The spelling of 1327145 in words is "one million, three hundred twenty-seven thousand, one hundred forty-five".