1042623553 has 2 divisors, whose sum is σ = 1042623554. Its totient is φ = 1042623552.

The previous prime is 1042623503. The next prime is 1042623581. The reversal of 1042623553 is 3553262401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 554743809 + 487879744 = 23553^2 + 22088^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042623553 - 2¹³ = 1042615361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042623503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521311776 + 521311777.

It is an arithmetic number, because the mean of its divisors is an integer number (521311777).

Almost surely, 2^1042623553 is an apocalyptic number.

It is an amenable number.

1042623553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042623553 is an equidigital number, since it uses as much as digits as its factorization.

1042623553 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1042623553 is about 32289.6818349144. The cubic root of 1042623553 is about 1014.0106363170.

Adding to 1042623553 its reverse (3553262401), we get a palindrome (4595885954).

The spelling of 1042623553 in words is "one billion, forty-two million, six hundred twenty-three thousand, five hundred fifty-three".