11720453 has 4 divisors (see below), whose sum is σ = 12037260. Its totient is φ = 11403648.

The previous prime is 11720447. The next prime is 11720483. The reversal of 11720453 is 35402711.

11720453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6041764 + 5678689 = 2458^2 + 2383^2 .

It is a cyclic number.

It is not a de Polignac number, because 11720453 - 2⁶ = 11720389 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 (11720483) 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, 158348 + ... + 158421.

It is an arithmetic number, because the mean of its divisors is an integer number (3009315).

Almost surely, 2^11720453 is an apocalyptic number.

It is an amenable number.

11720453 is a deficient number, since it is larger than the sum of its proper divisors (316807).

11720453 is an equidigital number, since it uses as much as digits as its factorization.

11720453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316806.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 11720453 is about 3423.5147144419. The cubic root of 11720453 is about 227.1510764382.

The spelling of 11720453 in words is "eleven million, seven hundred twenty thousand, four hundred fifty-three".