1351285 has 8 divisors (see below), whose sum is σ = 1746360. Its totient is φ = 997824.

The previous prime is 1351283. The next prime is 1351289. The reversal of 1351285 is 5821531.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 154449 + 1196836 = 393^2 + 1094^2 .

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 1351285 - 2¹ = 1351283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351283) 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, 10330 + ... + 10459.

It is an arithmetic number, because the mean of its divisors is an integer number (218295).

2^1351285 is an apocalyptic number.

It is an amenable number.

1351285 is a deficient number, since it is larger than the sum of its proper divisors (395075).

1351285 is a wasteful number, since it uses less digits than its factorization.

1351285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20807.

The product of its digits is 1200, while the sum is 25.

The square root of 1351285 is about 1162.4478482926. The cubic root of 1351285 is about 110.5560003611.

The spelling of 1351285 in words is "one million, three hundred fifty-one thousand, two hundred eighty-five".