1140346891 has 2 divisors, whose sum is σ = 1140346892. Its totient is φ = 1140346890.

The previous prime is 1140346847. The next prime is 1140346931. The reversal of 1140346891 is 1986430411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1140346891 - 2¹⁹ = 1139822603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1140346891.

It is not a weakly prime, because it can be changed into another prime (1140356891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570173445 + 570173446.

It is an arithmetic number, because the mean of its divisors is an integer number (570173446).

Almost surely, 2^1140346891 is an apocalyptic number.

1140346891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140346891 is an equidigital number, since it uses as much as digits as its factorization.

1140346891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1140346891 is about 33769.0226539058. The cubic root of 1140346891 is about 1044.7498744324.

The spelling of 1140346891 in words is "one billion, one hundred forty million, three hundred forty-six thousand, eight hundred ninety-one".