1291068 has 18 divisors (see below), whose sum is σ = 3263624. Its totient is φ = 430344.

The previous prime is 1291063. The next prime is 1291079. The reversal of 1291068 is 8601921.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1291063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17896 + ... + 17967.

2^1291068 is an apocalyptic number.

1291068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1291068 is an abundant number, since it is smaller than the sum of its proper divisors (1972556).

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

1291068 is a wasteful number, since it uses less digits than its factorization.

1291068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35873 (or 35868 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1291068 is about 1136.2517326719. The cubic root of 1291068 is about 108.8887566907. Note that the first 3 decimals are identical.

Adding to 1291068 its reverse (8601921), we get a palindrome (9892989).

The spelling of 1291068 in words is "one million, two hundred ninety-one thousand, sixty-eight".