1042225823 has 2 divisors, whose sum is σ = 1042225824. Its totient is φ = 1042225822.

The previous prime is 1042225819. The next prime is 1042225843. The reversal of 1042225823 is 3285222401.

It is a weak prime.

It is an emirp because it is prime and its reverse (3285222401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1042225823 - 2² = 1042225819 is a prime.

It is a super-2 number, since 2×1042225823² = 2172469332256054658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042225843) 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 as a sum of consecutive naturals, namely, 521112911 + 521112912.

It is an arithmetic number, because the mean of its divisors is an integer number (521112912).

Almost surely, 2^1042225823 is an apocalyptic number.

1042225823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042225823 is an equidigital number, since it uses as much as digits as its factorization.

1042225823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 1042225823 is about 32283.5224689004. The cubic root of 1042225823 is about 1013.8816815782.

The spelling of 1042225823 in words is "one billion, forty-two million, two hundred twenty-five thousand, eight hundred twenty-three".