1046451321 has 12 divisors (see below), whose sum is σ = 1532831040. Its totient is φ = 687807960.

The previous prime is 1046451313. The next prime is 1046451331. The reversal of 1046451321 is 1231546401.

It is a happy number.

1046451321 is a `hidden beast` number, since 1 + 0 + 4 + 645 + 13 + 2 + 1 = 666.

It is not a de Polignac number, because 1046451321 - 2³ = 1046451313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1046451331) 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 in 11 ways as a sum of consecutive naturals, for example, 818181 + ... + 819458.

It is an arithmetic number, because the mean of its divisors is an integer number (127735920).

Almost surely, 2^1046451321 is an apocalyptic number.

It is an amenable number.

1046451321 is a deficient number, since it is larger than the sum of its proper divisors (486379719).

1046451321 is a wasteful number, since it uses less digits than its factorization.

1046451321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637716 (or 1637713 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1046451321 is about 32348.8998421894. The cubic root of 1046451321 is about 1015.2500281101.

Adding to 1046451321 its reverse (1231546401), we get a palindrome (2277997722).

The spelling of 1046451321 in words is "one billion, forty-six million, four hundred fifty-one thousand, three hundred twenty-one".