1074345221 has 2 divisors, whose sum is σ = 1074345222. Its totient is φ = 1074345220.

The previous prime is 1074345193. The next prime is 1074345241. The reversal of 1074345221 is 1225434701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 905709025 + 168636196 = 30095^2 + 12986^2 .

It is a cyclic number.

It is not a de Polignac number, because 1074345221 - 2²⁶ = 1007236357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1074345241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537172610 + 537172611.

It is an arithmetic number, because the mean of its divisors is an integer number (537172611).

Almost surely, 2^1074345221 is an apocalyptic number.

It is an amenable number.

1074345221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1074345221 is an equidigital number, since it uses as much as digits as its factorization.

1074345221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1074345221 is about 32777.2058144071. The cubic root of 1074345221 is about 1024.1917788212.

Adding to 1074345221 its reverse (1225434701), we get a palindrome (2299779922).

The spelling of 1074345221 in words is "one billion, seventy-four million, three hundred forty-five thousand, two hundred twenty-one".