1045012453 has 4 divisors (see below), whose sum is σ = 1046007808. Its totient is φ = 1044017100.

The previous prime is 1045012427. The next prime is 1045012489. The reversal of 1045012453 is 3542105401.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 1045012453 - 2⁵ = 1045012421 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 (1045012403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496101 + ... + 498202.

It is an arithmetic number, because the mean of its divisors is an integer number (261501952).

Almost surely, 2^1045012453 is an apocalyptic number.

It is an amenable number.

1045012453 is a deficient number, since it is larger than the sum of its proper divisors (995355).

1045012453 is an equidigital number, since it uses as much as digits as its factorization.

1045012453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995354.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1045012453 is about 32326.6523630270. The cubic root of 1045012453 is about 1014.7844925752.

Adding to 1045012453 its reverse (3542105401), we get a palindrome (4587117854).

The spelling of 1045012453 in words is "one billion, forty-five million, twelve thousand, four hundred fifty-three".