1140212569 has 2 divisors, whose sum is σ = 1140212570. Its totient is φ = 1140212568.

The previous prime is 1140212551. The next prime is 1140212573. The reversal of 1140212569 is 9652120411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 965655625 + 174556944 = 31075^2 + 13212^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140212569 - 2¹¹ = 1140210521 is a prime.

It is a super-2 number, since 2×1140212569² = 2600169405011159522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1140212569.

It is not a weakly prime, because it can be changed into another prime (1140212599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570106284 + 570106285.

It is an arithmetic number, because the mean of its divisors is an integer number (570106285).

Almost surely, 2^1140212569 is an apocalyptic number.

It is an amenable number.

1140212569 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140212569 is an equidigital number, since it uses as much as digits as its factorization.

1140212569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1140212569 is about 33767.0337607555. The cubic root of 1140212569 is about 1044.7088522943.

The spelling of 1140212569 in words is "one billion, one hundred forty million, two hundred twelve thousand, five hundred sixty-nine".