1281153 has 8 divisors (see below), whose sum is σ = 1713600. Its totient is φ = 851408.

The previous prime is 1281149. The next prime is 1281157. The reversal of 1281153 is 3511821.

It is an interprime number because it is at equal distance from previous prime (1281149) and next prime (1281157).

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 1281153 - 2² = 1281149 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1281157) 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, 1108 + ... + 1946.

It is an arithmetic number, because the mean of its divisors is an integer number (214200).

2^1281153 is an apocalyptic number.

It is an amenable number.

1281153 is a deficient number, since it is larger than the sum of its proper divisors (432447).

1281153 is an equidigital number, since it uses as much as digits as its factorization.

1281153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351.

The product of its digits is 240, while the sum is 21.

The square root of 1281153 is about 1131.8802940241. The cubic root of 1281153 is about 108.6092961664.

Adding to 1281153 its reverse (3511821), we get a palindrome (4792974).

The spelling of 1281153 in words is "one million, two hundred eighty-one thousand, one hundred fifty-three".