1521363 has 8 divisors (see below), whose sum is σ = 2048976. Its totient is φ = 1004000.

The previous prime is 1521361. The next prime is 1521371. The reversal of 1521363 is 3631251.

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

It is a cyclic number.

It is not a de Polignac number, because 1521363 - 2¹ = 1521361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1521361) 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 7 ways as a sum of consecutive naturals, for example, 2208 + ... + 2813.

It is an arithmetic number, because the mean of its divisors is an integer number (256122).

2^1521363 is an apocalyptic number.

1521363 is a deficient number, since it is larger than the sum of its proper divisors (527613).

1521363 is a wasteful number, since it uses less digits than its factorization.

1521363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5125.

The product of its digits is 540, while the sum is 21.

The square root of 1521363 is about 1233.4354462233. The cubic root of 1521363 is about 115.0122986217.

The spelling of 1521363 in words is "one million, five hundred twenty-one thousand, three hundred sixty-three".