1140212141 has 4 divisors (see below), whose sum is σ = 1142320284. Its totient is φ = 1138104000.

The previous prime is 1140212131. The next prime is 1140212153. The reversal of 1140212141 is 1412120411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 354531241 + 785680900 = 18829^2 + 28030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140212141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140212131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1053260 + ... + 1054341.

It is an arithmetic number, because the mean of its divisors is an integer number (285580071).

Almost surely, 2^1140212141 is an apocalyptic number.

It is an amenable number.

1140212141 is a deficient number, since it is larger than the sum of its proper divisors (2108143).

1140212141 is an equidigital number, since it uses as much as digits as its factorization.

1140212141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108142.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1140212141 is about 33767.0274232127. The cubic root of 1140212141 is about 1044.7087215774.

Adding to 1140212141 its reverse (1412120411), we get a palindrome (2552332552).

The spelling of 1140212141 in words is "one billion, one hundred forty million, two hundred twelve thousand, one hundred forty-one".