1140402122 has 4 divisors (see below), whose sum is σ = 1710603186. Its totient is φ = 570201060.

The previous prime is 1140402121. The next prime is 1140402139. The reversal of 1140402122 is 2212040411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2212040411 = 7 ⋅316005773.

It can be written as a sum of positive squares in only one way, i.e., 817445281 + 322956841 = 28591^2 + 17971^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1140402122.

It is not an unprimeable number, because it can be changed into a prime (1140402121) 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, 285100529 + ... + 285100532.

Almost surely, 2^1140402122 is an apocalyptic number.

1140402122 is a deficient number, since it is larger than the sum of its proper divisors (570201064).

1140402122 is an equidigital number, since it uses as much as digits as its factorization.

1140402122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570201063.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1140402122 is about 33769.8404201145. The cubic root of 1140402122 is about 1044.7667411272.

Adding to 1140402122 its reverse (2212040411), we get a palindrome (3352442533).

The spelling of 1140402122 in words is "one billion, one hundred forty million, four hundred two thousand, one hundred twenty-two".