1143101453 has 4 divisors (see below), whose sum is σ = 1231032348. Its totient is φ = 1055170560.

The previous prime is 1143101419. The next prime is 1143101461. The reversal of 1143101453 is 3541013411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3541013411 = 13 ⋅272385647.

It can be written as a sum of positive squares in 2 ways, for example, as 213949129 + 929152324 = 14627^2 + 30482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143101453 is a prime.

It is a super-2 number, since 2×1143101453² = 2613361863701422418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143101413) 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, 43965428 + ... + 43965453.

It is an arithmetic number, because the mean of its divisors is an integer number (307758087).

Almost surely, 2^1143101453 is an apocalyptic number.

1143101453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1143101453 is a deficient number, since it is larger than the sum of its proper divisors (87930895).

1143101453 is an equidigital number, since it uses as much as digits as its factorization.

1143101453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87930894.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1143101453 is about 33809.7833917936. The cubic root of 1143101453 is about 1045.5904122998.

Adding to 1143101453 its reverse (3541013411), we get a palindrome (4684114864).

The spelling of 1143101453 in words is "one billion, one hundred forty-three million, one hundred one thousand, four hundred fifty-three".