1291354 has 16 divisors (see below), whose sum is σ = 2160000. Its totient is φ = 575424.

The previous prime is 1291349. The next prime is 1291357. The reversal of 1291354 is 4531921.

It is not an unprimeable number, because it can be changed into a prime (1291357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354 + ... + 1645.

It is an arithmetic number, because the mean of its divisors is an integer number (135000).

2^1291354 is an apocalyptic number.

1291354 is a deficient number, since it is larger than the sum of its proper divisors (868646).

1291354 is a wasteful number, since it uses less digits than its factorization.

1291354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037.

The product of its digits is 1080, while the sum is 25.

The square root of 1291354 is about 1136.3775780963. The cubic root of 1291354 is about 108.8967965164.

The spelling of 1291354 in words is "one million, two hundred ninety-one thousand, three hundred fifty-four".