1145232453 has 4 divisors (see below), whose sum is σ = 1526976608. Its totient is φ = 763488300.

The previous prime is 1145232443. The next prime is 1145232461. The reversal of 1145232453 is 3542325411.

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.

It is not a de Polignac number, because 1145232453 - 2⁴ = 1145232437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145232453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145232433) 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, 190872073 + ... + 190872078.

It is an arithmetic number, because the mean of its divisors is an integer number (381744152).

Almost surely, 2^1145232453 is an apocalyptic number.

It is an amenable number.

1145232453 is a deficient number, since it is larger than the sum of its proper divisors (381744155).

1145232453 is an equidigital number, since it uses as much as digits as its factorization.

1145232453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381744154.

The product of its digits is 14400, while the sum is 30.

The square root of 1145232453 is about 33841.2832646754. The cubic root of 1145232453 is about 1046.2397480757.

Adding to 1145232453 its reverse (3542325411), we get a palindrome (4687557864).

The spelling of 1145232453 in words is "one billion, one hundred forty-five million, two hundred thirty-two thousand, four hundred fifty-three".