1072805369 has 2 divisors, whose sum is σ = 1072805370. Its totient is φ = 1072805368.

The previous prime is 1072805347. The next prime is 1072805387. The reversal of 1072805369 is 9635082701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 842160400 + 230644969 = 29020^2 + 15187^2 .

It is an emirp because it is prime and its reverse (9635082701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1072805369 - 2²⁰ = 1071756793 is a prime.

It is a super-2 number, since 2×1072805369² = 2301822719510452322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1072808369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536402684 + 536402685.

It is an arithmetic number, because the mean of its divisors is an integer number (536402685).

Almost surely, 2^1072805369 is an apocalyptic number.

It is an amenable number.

1072805369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072805369 is an equidigital number, since it uses as much as digits as its factorization.

1072805369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 1072805369 is about 32753.7077137841. The cubic root of 1072805369 is about 1023.7022223878.

The spelling of 1072805369 in words is "one billion, seventy-two million, eight hundred five thousand, three hundred sixty-nine".