1091453 has 4 divisors (see below), whose sum is σ = 1190688. Its totient is φ = 992220.

The previous prime is 1091443. The next prime is 1091459. The reversal of 1091453 is 3541901.

It is a happy number.

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: 3541901 = 11 ⋅321991.

It is a cyclic number.

It is not a de Polignac number, because 1091453 - 2¹² = 1087357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091459) 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, 49601 + ... + 49622.

It is an arithmetic number, because the mean of its divisors is an integer number (297672).

2^1091453 is an apocalyptic number.

It is an amenable number.

1091453 is a deficient number, since it is larger than the sum of its proper divisors (99235).

1091453 is an equidigital number, since it uses as much as digits as its factorization.

1091453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99234.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1091453 is about 1044.7262799413. The cubic root of 1091453 is about 102.9599555272.

The spelling of 1091453 in words is "one million, ninety-one thousand, four hundred fifty-three".