1140187801 has 2 divisors, whose sum is σ = 1140187802. Its totient is φ = 1140187800.

The previous prime is 1140187787. The next prime is 1140187817. The reversal of 1140187801 is 1087810411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 618019600 + 522168201 = 24860^2 + 22851^2 .

It is an emirp because it is prime and its reverse (1087810411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1140187801 - 2⁷ = 1140187673 is a prime.

It is not a weakly prime, because it can be changed into another prime (1140187861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570093900 + 570093901.

It is an arithmetic number, because the mean of its divisors is an integer number (570093901).

Almost surely, 2^1140187801 is an apocalyptic number.

It is an amenable number.

1140187801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140187801 is an equidigital number, since it uses as much as digits as its factorization.

1140187801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 31.

The square root of 1140187801 is about 33766.6670105298. The cubic root of 1140187801 is about 1044.7012877586.

The spelling of 1140187801 in words is "one billion, one hundred forty million, one hundred eighty-seven thousand, eight hundred one".