140063569 has 2 divisors, whose sum is σ = 140063570. Its totient is φ = 140063568.

The previous prime is 140063557. The next prime is 140063593. The reversal of 140063569 is 965360041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139523344 + 540225 = 11812^2 + 735^2 .

It is an emirp because it is prime and its reverse (965360041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140063569 is a prime.

It is a super-2 number, since 2×140063569² = 39235606722035522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140066569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70031784 + 70031785.

It is an arithmetic number, because the mean of its divisors is an integer number (70031785).

Almost surely, 2^140063569 is an apocalyptic number.

It is an amenable number.

140063569 is a deficient number, since it is larger than the sum of its proper divisors (1).

140063569 is an equidigital number, since it uses as much as digits as its factorization.

140063569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 140063569 is about 11834.8455418734. The cubic root of 140063569 is about 519.3279891639.

The spelling of 140063569 in words is "one hundred forty million, sixty-three thousand, five hundred sixty-nine".