1309116 has 24 divisors (see below), whose sum is σ = 3082240. Its totient is φ = 432432.

The previous prime is 1309103. The next prime is 1309117. The reversal of 1309116 is 6119031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1309092 and 1309101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1309117) 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, 1095 + ... + 1953.

2^1309116 is an apocalyptic number.

It is an amenable number.

1309116 is an abundant number, since it is smaller than the sum of its proper divisors (1773124).

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

1309116 is a wasteful number, since it uses less digits than its factorization.

1309116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1309116 is about 1144.1660718619. The cubic root of 1309116 is about 109.3938004145.

The spelling of 1309116 in words is "one million, three hundred nine thousand, one hundred sixteen".