1310555 has 4 divisors (see below), whose sum is σ = 1572672. Its totient is φ = 1048440.

The previous prime is 1310549. The next prime is 1310579. The reversal of 1310555 is 5550131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5550131 = 139 ⋅39929.

It is not a de Polignac number, because 1310555 - 2¹⁰ = 1309531 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131051 + ... + 131060.

It is an arithmetic number, because the mean of its divisors is an integer number (393168).

2^1310555 is an apocalyptic number.

1310555 is a deficient number, since it is larger than the sum of its proper divisors (262117).

1310555 is an equidigital number, since it uses as much as digits as its factorization.

1310555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262116.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 1310555 is about 1144.7947414275. The cubic root of 1310555 is about 109.4338681740.

Adding to 1310555 its reverse (5550131), we get a palindrome (6860686).

The spelling of 1310555 in words is "one million, three hundred ten thousand, five hundred fifty-five".