1291934 has 12 divisors (see below), whose sum is σ = 2254464. Its totient is φ = 553644.

The previous prime is 1291931. The next prime is 1291957. The reversal of 1291934 is 4391921.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1291897 and 1291906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1291931) 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 5 ways as a sum of consecutive naturals, for example, 6494 + ... + 6689.

It is an arithmetic number, because the mean of its divisors is an integer number (187872).

2^1291934 is an apocalyptic number.

1291934 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1291934 is a deficient number, since it is larger than the sum of its proper divisors (962530).

1291934 is a wasteful number, since it uses less digits than its factorization.

1291934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13199 (or 13192 counting only the distinct ones).

The product of its digits is 1944, while the sum is 29.

The square root of 1291934 is about 1136.6327463169. The cubic root of 1291934 is about 108.9130974142.

The spelling of 1291934 in words is "one million, two hundred ninety-one thousand, nine hundred thirty-four".