1312051 has 4 divisors (see below), whose sum is σ = 1412992. Its totient is φ = 1211112.

The previous prime is 1312027. The next prime is 1312079. The reversal of 1312051 is 1502131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1502131 = 367 ⋅4093.

It is a cyclic number.

It is not a de Polignac number, because 1312051 - 2⁵ = 1312019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 100927 = 1312051 / (1 + 3 + 1 + 2 + 0 + 5 + 1).

It is a Duffinian number.

1312051 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1312001) 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, 50451 + ... + 50476.

It is an arithmetic number, because the mean of its divisors is an integer number (353248).

2^1312051 is an apocalyptic number.

1312051 is a deficient number, since it is larger than the sum of its proper divisors (100941).

1312051 is a wasteful number, since it uses less digits than its factorization.

1312051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100940.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1312051 is about 1145.4479473114. The cubic root of 1312051 is about 109.4754919679.

Adding to 1312051 its reverse (1502131), we get a palindrome (2814182).

The spelling of 1312051 in words is "one million, three hundred twelve thousand, fifty-one".