1042321545 has 24 divisors (see below), whose sum is σ = 1813096896. Its totient is φ = 553933728.

The previous prime is 1042321523. The next prime is 1042321573. The reversal of 1042321545 is 5451232401.

It is not a de Polignac number, because 1042321545 - 2⁶ = 1042321481 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28189 + ... + 53658.

It is an arithmetic number, because the mean of its divisors is an integer number (75545704).

Almost surely, 2^1042321545 is an apocalyptic number.

1042321545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1042321545 is a deficient number, since it is larger than the sum of its proper divisors (770775351).

1042321545 is a wasteful number, since it uses less digits than its factorization.

1042321545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82141 (or 82138 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1042321545 is about 32285.0049558615. The cubic root of 1042321545 is about 1013.9127202166.

Adding to 1042321545 its reverse (5451232401), we get a palindrome (6493553946).

The spelling of 1042321545 in words is "one billion, forty-two million, three hundred twenty-one thousand, five hundred forty-five".