1063521 has 6 divisors (see below), whose sum is σ = 1536210. Its totient is φ = 709008.

The previous prime is 1063501. The next prime is 1063523. The reversal of 1063521 is 1253601.

1063521 is a `hidden beast` number, since 10 + 635 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 950625 + 112896 = 975^2 + 336^2 .

It is not a de Polignac number, because 1063521 - 2⁶ = 1063457 is a prime.

It is a super-2 number, since 2×1063521² = 2262153834882, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1063494 and 1063503.

It is not an unprimeable number, because it can be changed into a prime (1063523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59076 + ... + 59093.

It is an arithmetic number, because the mean of its divisors is an integer number (256035).

2^1063521 is an apocalyptic number.

It is an amenable number.

1063521 is a deficient number, since it is larger than the sum of its proper divisors (472689).

1063521 is a wasteful number, since it uses less digits than its factorization.

1063521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118175 (or 118172 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1063521 is about 1031.2715452295. The cubic root of 1063521 is about 102.0740523378.

The spelling of 1063521 in words is "one million, sixty-three thousand, five hundred twenty-one".