1042345453 has 4 divisors (see below), whose sum is σ = 1097205760. Its totient is φ = 987485148.

The previous prime is 1042345439. The next prime is 1042345481. The reversal of 1042345453 is 3545432401.

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 a de Polignac number, because none of the positive numbers 2^k-1042345453 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 (1042345253) 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, 27430125 + ... + 27430162.

It is an arithmetic number, because the mean of its divisors is an integer number (274301440).

Almost surely, 2^1042345453 is an apocalyptic number.

It is an amenable number.

1042345453 is a deficient number, since it is larger than the sum of its proper divisors (54860307).

1042345453 is an equidigital number, since it uses as much as digits as its factorization.

1042345453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54860306.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 1042345453 is about 32285.3752185103. The cubic root of 1042345453 is about 1013.9204722838.

Adding to 1042345453 its reverse (3545432401), we get a palindrome (4587777854).

The spelling of 1042345453 in words is "one billion, forty-two million, three hundred forty-five thousand, four hundred fifty-three".