1140454453 has 4 divisors (see below), whose sum is σ = 1142835840. Its totient is φ = 1138073068.

The previous prime is 1140454451. The next prime is 1140454457. The reversal of 1140454453 is 3544540411.

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: 3544540411 = 1327 ⋅2671093.

It is a cyclic number.

It is not a de Polignac number, because 1140454453 - 2¹ = 1140454451 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 (1140454451) 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, 1189975 + ... + 1190932.

It is an arithmetic number, because the mean of its divisors is an integer number (285708960).

Almost surely, 2^1140454453 is an apocalyptic number.

It is an amenable number.

1140454453 is a deficient number, since it is larger than the sum of its proper divisors (2381387).

1140454453 is an equidigital number, since it uses as much as digits as its factorization.

1140454453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381386.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 1140454453 is about 33770.6152298118. The cubic root of 1140454453 is about 1044.7827217043.

Adding to 1140454453 its reverse (3544540411), we get a palindrome (4684994864).

The spelling of 1140454453 in words is "one billion, one hundred forty million, four hundred fifty-four thousand, four hundred fifty-three".