1261316 has 24 divisors (see below), whose sum is σ = 2552256. Its totient is φ = 534240.

The previous prime is 1261313. The next prime is 1261321. The reversal of 1261316 is 6131621.

It is not an unprimeable number, because it can be changed into a prime (1261313) 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, 2786 + ... + 3206.

It is an arithmetic number, because the mean of its divisors is an integer number (106344).

2^1261316 is an apocalyptic number.

It is an amenable number.

1261316 is an abundant number, since it is smaller than the sum of its proper divisors (1290940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1261316 is a wasteful number, since it uses less digits than its factorization.

1261316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 537 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

The square root of 1261316 is about 1123.0832560412. The cubic root of 1261316 is about 108.0458196070.

Adding to 1261316 its reverse (6131621), we get a palindrome (7392937).

The spelling of 1261316 in words is "one million, two hundred sixty-one thousand, three hundred sixteen".