1042355623 has 4 divisors (see below), whose sum is σ = 1042430680. Its totient is φ = 1042280568.

The previous prime is 1042355593. The next prime is 1042355627. The reversal of 1042355623 is 3265532401.

It is a happy number.

1042355623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3265532401 = 193 ⋅16919857.

It is a cyclic number.

It is not a de Polignac number, because 1042355623 - 2¹³ = 1042347431 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 (1042355627) 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, 9933 + ... + 46726.

It is an arithmetic number, because the mean of its divisors is an integer number (260607670).

Almost surely, 2^1042355623 is an apocalyptic number.

1042355623 is a deficient number, since it is larger than the sum of its proper divisors (75057).

1042355623 is an equidigital number, since it uses as much as digits as its factorization.

1042355623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75056.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 1042355623 is about 32285.5327197802. The cubic root of 1042355623 is about 1013.9237698270.

The spelling of 1042355623 in words is "one billion, forty-two million, three hundred fifty-five thousand, six hundred twenty-three".