1291070 has 32 divisors (see below), whose sum is σ = 2582496. Its totient is φ = 464640.

The previous prime is 1291063. The next prime is 1291079. The reversal of 1291070 is 701921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1291079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13262 + ... + 13358.

It is an arithmetic number, because the mean of its divisors is an integer number (80703).

2^1291070 is an apocalyptic number.

1291070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1291070 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1291070 is an equidigital number, since it uses as much as digits as its factorization.

1291070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 1291070 is about 1136.2526127583. The cubic root of 1291070 is about 108.8888129174. Note that the first 4 decimals are identical.

Adding to 1291070 its reverse (701921), we get a palindrome (1992991).

The spelling of 1291070 in words is "one million, two hundred ninety-one thousand, seventy".