1070903209 has 2 divisors, whose sum is σ = 1070903210. Its totient is φ = 1070903208.

The previous prime is 1070903203. The next prime is 1070903221. The reversal of 1070903209 is 9023090701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 995213209 + 75690000 = 31547^2 + 8700^2 .

It is an emirp because it is prime and its reverse (9023090701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1070903209 - 2³ = 1070903201 is a prime.

It is a super-2 number, since 2×1070903209² = 2293667366092995362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1070903201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535451604 + 535451605.

It is an arithmetic number, because the mean of its divisors is an integer number (535451605).

Almost surely, 2^1070903209 is an apocalyptic number.

It is an amenable number.

1070903209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1070903209 is an equidigital number, since it uses as much as digits as its factorization.

1070903209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 1070903209 is about 32724.6575077571. The cubic root of 1070903209 is about 1023.0968322339.

The spelling of 1070903209 in words is "one billion, seventy million, nine hundred three thousand, two hundred nine".