1521946 has 8 divisors (see below), whose sum is σ = 2288160. Its totient is φ = 759228.

The previous prime is 1521937. The next prime is 1521973. The reversal of 1521946 is 6491251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1225 + ... + 2131.

It is an arithmetic number, because the mean of its divisors is an integer number (286020).

2^1521946 is an apocalyptic number.

1521946 is a deficient number, since it is larger than the sum of its proper divisors (766214).

1521946 is an equidigital number, since it uses as much as digits as its factorization.

1521946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748.

The product of its digits is 2160, while the sum is 28.

The square root of 1521946 is about 1233.6717553709. The cubic root of 1521946 is about 115.0269879949.

The spelling of 1521946 in words is "one million, five hundred twenty-one thousand, nine hundred forty-six".