1045436521 has 2 divisors, whose sum is σ = 1045436522. Its totient is φ = 1045436520.

The previous prime is 1045436479. The next prime is 1045436531. The reversal of 1045436521 is 1256345401.

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., 921426025 + 124010496 = 30355^2 + 11136^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045436521 - 2¹⁹ = 1044912233 is a prime.

It is not a weakly prime, because it can be changed into another prime (1045436531) 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, 522718260 + 522718261.

It is an arithmetic number, because the mean of its divisors is an integer number (522718261).

Almost surely, 2^1045436521 is an apocalyptic number.

It is an amenable number.

1045436521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045436521 is an equidigital number, since it uses as much as digits as its factorization.

1045436521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1045436521 is about 32333.2108056098. The cubic root of 1045436521 is about 1014.9217411574.

The spelling of 1045436521 in words is "one billion, forty-five million, four hundred thirty-six thousand, five hundred twenty-one".