1301121 has 6 divisors (see below), whose sum is σ = 1879410. Its totient is φ = 867408.

The previous prime is 1301119. The next prime is 1301123. The reversal of 1301121 is 1211031.

It is an interprime number because it is at equal distance from previous prime (1301119) and next prime (1301123).

It can be written as a sum of positive squares in only one way, i.e., 1299600 + 1521 = 1140^2 + 39^2 .

It is not a de Polignac number, because 1301121 - 2¹ = 1301119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 144569 = 1301121 / (1 + 3 + 0 + 1 + 1 + 2 + 1).

It is not an unprimeable number, because it can be changed into a prime (1301123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72276 + ... + 72293.

It is an arithmetic number, because the mean of its divisors is an integer number (313235).

2^1301121 is an apocalyptic number.

It is an amenable number.

1301121 is a deficient number, since it is larger than the sum of its proper divisors (578289).

1301121 is a wasteful number, since it uses less digits than its factorization.

1301121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144575 (or 144572 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1301121 is about 1140.6669101889. Note that the first 3 decimals coincide. The cubic root of 1301121 is about 109.1706498427.

Adding to 1301121 its reverse (1211031), we get a palindrome (2512152).

The spelling of 1301121 in words is "one million, three hundred one thousand, one hundred twenty-one".