1069821953 has 2 divisors, whose sum is σ = 1069821954. Its totient is φ = 1069821952.

The previous prime is 1069821941. The next prime is 1069822001. The reversal of 1069821953 is 3591289601.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1067459584 + 2362369 = 32672^2 + 1537^2 .

It is an emirp because it is prime and its reverse (3591289601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1069821953 - 2⁶ = 1069821889 is a prime.

It is a super-2 number, since 2×1069821953² = 2289038022241468418, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1069821653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534910976 + 534910977.

It is an arithmetic number, because the mean of its divisors is an integer number (534910977).

Almost surely, 2^1069821953 is an apocalyptic number.

It is an amenable number.

1069821953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1069821953 is an equidigital number, since it uses as much as digits as its factorization.

1069821953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 1069821953 is about 32708.1328265617. The cubic root of 1069821953 is about 1022.7523871287.

The spelling of 1069821953 in words is "one billion, sixty-nine million, eight hundred twenty-one thousand, nine hundred fifty-three".