1042364561 has 16 divisors (see below), whose sum is σ = 1212484608. Its totient is φ = 877640400.

The previous prime is 1042364551. The next prime is 1042364569. The reversal of 1042364561 is 1654632401.

It is not a de Polignac number, because 1042364561 - 2¹⁰ = 1042363537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1042364569) 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 in 15 ways as a sum of consecutive naturals, for example, 136946 + ... + 144356.

It is an arithmetic number, because the mean of its divisors is an integer number (75780288).

Almost surely, 2^1042364561 is an apocalyptic number.

It is an amenable number.

1042364561 is a deficient number, since it is larger than the sum of its proper divisors (170120047).

1042364561 is an equidigital number, since it uses as much as digits as its factorization.

1042364561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7772.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1042364561 is about 32285.6711406159. The cubic root of 1042364561 is about 1013.9266678862.

Adding to 1042364561 its reverse (1654632401), we get a palindrome (2696996962).

The spelling of 1042364561 in words is "one billion, forty-two million, three hundred sixty-four thousand, five hundred sixty-one".