1140293657 has 2 divisors, whose sum is σ = 1140293658. Its totient is φ = 1140293656.

The previous prime is 1140293647. The next prime is 1140293699. The reversal of 1140293657 is 7563920411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1007491081 + 132802576 = 31741^2 + 11524^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140293657 - 2¹⁸ = 1140031513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1140293657.

It is not a weakly prime, because it can be changed into another prime (1140293647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570146828 + 570146829.

It is an arithmetic number, because the mean of its divisors is an integer number (570146829).

Almost surely, 2^1140293657 is an apocalyptic number.

It is an amenable number.

1140293657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140293657 is an equidigital number, since it uses as much as digits as its factorization.

1140293657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 1140293657 is about 33768.2344371156. The cubic root of 1140293657 is about 1044.7336170752.

The spelling of 1140293657 in words is "one billion, one hundred forty million, two hundred ninety-three thousand, six hundred fifty-seven".