1072149194569 has 2 divisors, whose sum is σ = 1072149194570. Its totient is φ = 1072149194568.

The previous prime is 1072149194561. The next prime is 1072149194651. The reversal of 1072149194569 is 9654919412701.

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., 782538390544 + 289610804025 = 884612^2 + 538155^2 .

It is a cyclic number.

It is not a de Polignac number, because 1072149194569 - 2³ = 1072149194561 is a prime.

It is a super-2 number, since 2×1072149194569² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1072149194561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536074597284 + 536074597285.

It is an arithmetic number, because the mean of its divisors is an integer number (536074597285).

Almost surely, 2^{1072149194569} is an apocalyptic number.

It is an amenable number.

1072149194569 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072149194569 is an equidigital number, since it uses as much as digits as its factorization.

1072149194569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 58.

The spelling of 1072149194569 in words is "one trillion, seventy-two billion, one hundred forty-nine million, one hundred ninety-four thousand, five hundred sixty-nine".