1141638205 has 8 divisors (see below), whose sum is σ = 1382535000. Its totient is φ = 904931136.

The previous prime is 1141638163. The next prime is 1141638221. The reversal of 1141638205 is 5028361411.

It can be written as a sum of positive squares in 4 ways, for example, as 540702009 + 600936196 = 23253^2 + 24514^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1141638205 - 2¹³ = 1141630013 is a prime.

It is a super-2 number, since 2×1141638205² = 2606675582231244050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1046830 + ... + 1047919.

It is an arithmetic number, because the mean of its divisors is an integer number (172816875).

Almost surely, 2^1141638205 is an apocalyptic number.

It is an amenable number.

1141638205 is a deficient number, since it is larger than the sum of its proper divisors (240896795).

1141638205 is a wasteful number, since it uses less digits than its factorization.

1141638205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094863.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1141638205 is about 33788.1370454188. The cubic root of 1141638205 is about 1045.1440793993.

Adding to 1141638205 its reverse (5028361411), we get a palindrome (6169999616).

The spelling of 1141638205 in words is "one billion, one hundred forty-one million, six hundred thirty-eight thousand, two hundred five".