1201271 has 4 divisors (see below), whose sum is σ = 1271952. Its totient is φ = 1130592.

The previous prime is 1201261. The next prime is 1201283. The reversal of 1201271 is 1721021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1721021 = 23 ⋅74827.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35315 + ... + 35348.

It is an arithmetic number, because the mean of its divisors is an integer number (317988).

2^1201271 is an apocalyptic number.

1201271 is a deficient number, since it is larger than the sum of its proper divisors (70681).

1201271 is an equidigital number, since it uses as much as digits as its factorization.

1201271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70680.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 1201271 is about 1096.0250909537. The cubic root of 1201271 is about 106.3033614314.

Adding to 1201271 its reverse (1721021), we get a palindrome (2922292).

The spelling of 1201271 in words is "one million, two hundred one thousand, two hundred seventy-one".