1140027557 has 2 divisors, whose sum is σ = 1140027558. Its totient is φ = 1140027556.

The previous prime is 1140027533. The next prime is 1140027583. The reversal of 1140027557 is 7557200411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1123657441 + 16370116 = 33521^2 + 4046^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140027557 - 2¹⁸ = 1139765413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140027457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570013778 + 570013779.

It is an arithmetic number, because the mean of its divisors is an integer number (570013779).

Almost surely, 2^1140027557 is an apocalyptic number.

It is an amenable number.

1140027557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140027557 is an equidigital number, since it uses as much as digits as its factorization.

1140027557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 1140027557 is about 33764.2941137528. The cubic root of 1140027557 is about 1044.6523440798.

Adding to 1140027557 its reverse (7557200411), we get a palindrome (8697227968).

The spelling of 1140027557 in words is "one billion, one hundred forty million, twenty-seven thousand, five hundred fifty-seven".