1521466 has 16 divisors (see below), whose sum is σ = 2453544. Its totient is φ = 705024.

The previous prime is 1521397. The next prime is 1521479. The reversal of 1521466 is 6641251.

It can be written as a sum of positive squares in 4 ways, for example, as 1071225 + 450241 = 1035^2 + 671^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1521466.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2176 + ... + 2788.

2^1521466 is an apocalyptic number.

1521466 is a deficient number, since it is larger than the sum of its proper divisors (932078).

1521466 is a wasteful number, since it uses less digits than its factorization.

1521466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705.

The product of its digits is 1440, while the sum is 25.

The square root of 1521466 is about 1233.4771988164. The cubic root of 1521466 is about 115.0148941012.

The spelling of 1521466 in words is "one million, five hundred twenty-one thousand, four hundred sixty-six".