1045937021 has 2 divisors, whose sum is σ = 1045937022. Its totient is φ = 1045937020.

The previous prime is 1045936973. The next prime is 1045937041. The reversal of 1045937021 is 1207395401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 940648900 + 105288121 = 30670^2 + 10261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045937021 - 2²² = 1041742717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1045937041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522968510 + 522968511.

It is an arithmetic number, because the mean of its divisors is an integer number (522968511).

Almost surely, 2^1045937021 is an apocalyptic number.

It is an amenable number.

1045937021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045937021 is an equidigital number, since it uses as much as digits as its factorization.

1045937021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1045937021 is about 32340.9495995402. The cubic root of 1045937021 is about 1015.0836790273.

The spelling of 1045937021 in words is "one billion, forty-five million, nine hundred thirty-seven thousand, twenty-one".