1043215453 has 4 divisors (see below), whose sum is σ = 1192246240. Its totient is φ = 894184668.

The previous prime is 1043215447. The next prime is 1043215457. The reversal of 1043215453 is 3545123401.

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: 3545123401 = 7297 ⋅485833.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1043215453 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 (1043215457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74515383 + ... + 74515396.

It is an arithmetic number, because the mean of its divisors is an integer number (298061560).

Almost surely, 2^1043215453 is an apocalyptic number.

It is an amenable number.

1043215453 is a deficient number, since it is larger than the sum of its proper divisors (149030787).

1043215453 is an equidigital number, since it uses as much as digits as its factorization.

1043215453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149030786.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1043215453 is about 32298.8460010571. The cubic root of 1043215453 is about 1014.2024854757.

Adding to 1043215453 its reverse (3545123401), we get a palindrome (4588338854).

The spelling of 1043215453 in words is "one billion, forty-three million, two hundred fifteen thousand, four hundred fifty-three".