1050521 has 4 divisors (see below), whose sum is σ = 1056000. Its totient is φ = 1045044.

The previous prime is 1050509. The next prime is 1050523. The reversal of 1050521 is 1250501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1250501 = 7 ⋅178643.

It is a cyclic number.

It is not a de Polignac number, because 1050521 - 2⁶ = 1050457 is a prime.

It is a super-2 number, since 2×1050521² = 2207188742882, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1050496 and 1050505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1050523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2441 + ... + 2838.

It is an arithmetic number, because the mean of its divisors is an integer number (264000).

2^1050521 is an apocalyptic number.

It is an amenable number.

1050521 is a deficient number, since it is larger than the sum of its proper divisors (5479).

1050521 is an equidigital number, since it uses as much as digits as its factorization.

1050521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5478.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 1050521 is about 1024.9492670372. The cubic root of 1050521 is about 101.6564437749.

The spelling of 1050521 in words is "one million, fifty thousand, five hundred twenty-one".