1140402427 has 2 divisors, whose sum is σ = 1140402428. Its totient is φ = 1140402426.

The previous prime is 1140402397. The next prime is 1140402433. The reversal of 1140402427 is 7242040411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1140402427 - 2¹⁹ = 1139878139 is a prime.

It is not a weakly prime, because it can be changed into another prime (1140402437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570201213 + 570201214.

It is an arithmetic number, because the mean of its divisors is an integer number (570201214).

Almost surely, 2^1140402427 is an apocalyptic number.

1140402427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140402427 is an equidigital number, since it uses as much as digits as its factorization.

1140402427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 1140402427 is about 33769.8449359780. The cubic root of 1140402427 is about 1044.7668342680.

Adding to 1140402427 its reverse (7242040411), we get a palindrome (8382442838).

The spelling of 1140402427 in words is "one billion, one hundred forty million, four hundred two thousand, four hundred twenty-seven".