1145053453 has 4 divisors (see below), whose sum is σ = 1172981628. Its totient is φ = 1117125280.

The previous prime is 1145053451. The next prime is 1145053471. The reversal of 1145053453 is 3543505411.

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 115734564 + 1029318889 = 10758^2 + 32083^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145053453 - 2¹ = 1145053451 is a prime.

It is a super-2 number, since 2×1145053453² = 2622294820454446418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145053451) 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, 13964026 + ... + 13964107.

It is an arithmetic number, because the mean of its divisors is an integer number (293245407).

Almost surely, 2^1145053453 is an apocalyptic number.

It is an amenable number.

1145053453 is a deficient number, since it is larger than the sum of its proper divisors (27928175).

1145053453 is an equidigital number, since it uses as much as digits as its factorization.

1145053453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27928174.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 1145053453 is about 33838.6384625623. The cubic root of 1145053453 is about 1046.1852360936.

Adding to 1145053453 its reverse (3543505411), we get a palindrome (4688558864).

The spelling of 1145053453 in words is "one billion, one hundred forty-five million, fifty-three thousand, four hundred fifty-three".