1491854 has 24 divisors (see below), whose sum is σ = 2805768. Its totient is φ = 589680.

The previous prime is 1491851. The next prime is 1491859. The reversal of 1491854 is 4581941.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1491854.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491851) 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 11 ways as a sum of consecutive naturals, for example, 689 + ... + 1859.

It is an arithmetic number, because the mean of its divisors is an integer number (116907).

2^1491854 is an apocalyptic number.

1491854 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1491854 is a deficient number, since it is larger than the sum of its proper divisors (1313914).

1491854 is a wasteful number, since it uses less digits than its factorization.

1491854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200 (or 1193 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The square root of 1491854 is about 1221.4147534724. The cubic root of 1491854 is about 114.2638292916.

It can be divided in two parts, 14 and 91854, that multiplied together give a square (1285956 = 1134²).

The spelling of 1491854 in words is "one million, four hundred ninety-one thousand, eight hundred fifty-four".