1201285 has 4 divisors (see below), whose sum is σ = 1441548. Its totient is φ = 961024.

The previous prime is 1201283. The next prime is 1201307. The reversal of 1201285 is 5821021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5821021 = 17 ⋅342413.

It can be written as a sum of positive squares in 2 ways, for example, as 729316 + 471969 = 854^2 + 687^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201285 - 2¹ = 1201283 is a prime.

It is a Duffinian number.

1201285 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201283) 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, 120124 + ... + 120133.

It is an arithmetic number, because the mean of its divisors is an integer number (360387).

2^1201285 is an apocalyptic number.

It is an amenable number.

1201285 is a deficient number, since it is larger than the sum of its proper divisors (240263).

1201285 is an equidigital number, since it uses as much as digits as its factorization.

1201285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240262.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1201285 is about 1096.0314776502. The cubic root of 1201285 is about 106.3037743943.

The spelling of 1201285 in words is "one million, two hundred one thousand, two hundred eighty-five".