1140126205 has 4 divisors (see below), whose sum is σ = 1368151452. Its totient is φ = 912100960.

The previous prime is 1140126181. The next prime is 1140126227. The reversal of 1140126205 is 5026210411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5026210411 = 2297 ⋅2188163.

It can be written as a sum of positive squares in 2 ways, for example, as 648262521 + 491863684 = 25461^2 + 22178^2 .

It is not a de Polignac number, because 1140126205 - 2¹¹ = 1140124157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114012616 + ... + 114012625.

It is an arithmetic number, because the mean of its divisors is an integer number (342037863).

Almost surely, 2^1140126205 is an apocalyptic number.

It is an amenable number.

1140126205 is a deficient number, since it is larger than the sum of its proper divisors (228025247).

1140126205 is an equidigital number, since it uses as much as digits as its factorization.

1140126205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228025246.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1140126205 is about 33765.7549152984. The cubic root of 1140126205 is about 1044.6824748989.

Adding to 1140126205 its reverse (5026210411), we get a palindrome (6166336616).

The spelling of 1140126205 in words is "one billion, one hundred forty million, one hundred twenty-six thousand, two hundred five".