1073429221 has 2 divisors, whose sum is σ = 1073429222. Its totient is φ = 1073429220.

The previous prime is 1073429213. The next prime is 1073429309. The reversal of 1073429221 is 1229243701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 932080900 + 141348321 = 30530^2 + 11889^2 .

It is a cyclic number.

It is not a de Polignac number, because 1073429221 - 2³ = 1073429213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1073429921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536714610 + 536714611.

It is an arithmetic number, because the mean of its divisors is an integer number (536714611).

Almost surely, 2^1073429221 is an apocalyptic number.

It is an amenable number.

1073429221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073429221 is an equidigital number, since it uses as much as digits as its factorization.

1073429221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1073429221 is about 32763.2297095387. The cubic root of 1073429221 is about 1023.9006165373.

The spelling of 1073429221 in words is "one billion, seventy-three million, four hundred twenty-nine thousand, two hundred twenty-one".