1045430521 has 16 divisors (see below), whose sum is σ = 1172223360. Its totient is φ = 926519040.

The previous prime is 1045430489. The next prime is 1045430539. The reversal of 1045430521 is 1250345401.

It is a happy number.

It is not a de Polignac number, because 1045430521 - 2⁵ = 1045430489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045431521) 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, 44251 + ... + 63631.

It is an arithmetic number, because the mean of its divisors is an integer number (73263960).

Almost surely, 2^1045430521 is an apocalyptic number.

It is an amenable number.

1045430521 is a deficient number, since it is larger than the sum of its proper divisors (126792839).

1045430521 is a wasteful number, since it uses less digits than its factorization.

1045430521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19584.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1045430521 is about 32333.1180216199. The cubic root of 1045430521 is about 1014.9197995308.

Adding to 1045430521 its reverse (1250345401), we get a palindrome (2295775922).

The spelling of 1045430521 in words is "one billion, forty-five million, four hundred thirty thousand, five hundred twenty-one".