1140404201 has 4 divisors (see below), whose sum is σ = 1156466304. Its totient is φ = 1124342100.

The previous prime is 1140404171. The next prime is 1140404219. The reversal of 1140404201 is 1024040411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1024040411 = 761 ⋅1345651.

It is a cyclic number.

It is not a de Polignac number, because 1140404201 - 2⁶ = 1140404137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1140404201.

It is not an unprimeable number, because it can be changed into a prime (1140404261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8030945 + ... + 8031086.

It is an arithmetic number, because the mean of its divisors is an integer number (289116576).

Almost surely, 2^1140404201 is an apocalyptic number.

It is an amenable number.

1140404201 is a deficient number, since it is larger than the sum of its proper divisors (16062103).

1140404201 is an equidigital number, since it uses as much as digits as its factorization.

1140404201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16062102.

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

The square root of 1140404201 is about 33769.8712020049. The cubic root of 1140404201 is about 1044.7673760111.

Adding to 1140404201 its reverse (1024040411), we get a palindrome (2164444612).

The spelling of 1140404201 in words is "one billion, one hundred forty million, four hundred four thousand, two hundred one".