1042821453 has 8 divisors (see below), whose sum is σ = 1390619008. Its totient is φ = 695119104.

The previous prime is 1042821419. The next prime is 1042821487. The reversal of 1042821453 is 3541282401.

It is an interprime number because it is at equal distance from previous prime (1042821419) and next prime (1042821487).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1042821453 - 2⁶ = 1042821389 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 1042821453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042821053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7725 + ... + 46317.

It is an arithmetic number, because the mean of its divisors is an integer number (173827376).

Almost surely, 2^1042821453 is an apocalyptic number.

It is an amenable number.

1042821453 is a deficient number, since it is larger than the sum of its proper divisors (347797555).

1042821453 is an equidigital number, since it uses as much as digits as its factorization.

1042821453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47603.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 1042821453 is about 32292.7461359359. The cubic root of 1042821453 is about 1014.0747885892.

The spelling of 1042821453 in words is "one billion, forty-two million, eight hundred twenty-one thousand, four hundred fifty-three".