1092521 has 4 divisors (see below), whose sum is σ = 1103232. Its totient is φ = 1081812.

The previous prime is 1092493. The next prime is 1092541. The reversal of 1092521 is 1252901.

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: 1252901 = 13 ⋅96377.

It is a cyclic number.

It is not a de Polignac number, because 1092521 - 2¹⁴ = 1076137 is a prime.

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 = 1092493 and 1092502.

It is not an unprimeable number, because it can be changed into a prime (1092541) 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, 5201 + ... + 5406.

It is an arithmetic number, because the mean of its divisors is an integer number (275808).

2^1092521 is an apocalyptic number.

It is an amenable number.

1092521 is a deficient number, since it is larger than the sum of its proper divisors (10711).

1092521 is a wasteful number, since it uses less digits than its factorization.

1092521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10710.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1092521 is about 1045.2372936324. The cubic root of 1092521 is about 102.9935271013.

The spelling of 1092521 in words is "one million, ninety-two thousand, five hundred twenty-one".