1138130245 has 16 divisors (see below), whose sum is σ = 1565303040. Its totient is φ = 778212864.

The previous prime is 1138130243. The next prime is 1138130251. The reversal of 1138130245 is 5420318311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1138130245 - 2¹ = 1138130243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138130243) 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 in 15 ways as a sum of consecutive naturals, for example, 33705 + ... + 58414.

It is an arithmetic number, because the mean of its divisors is an integer number (97831440).

Almost surely, 2^1138130245 is an apocalyptic number.

It is an amenable number.

1138130245 is a deficient number, since it is larger than the sum of its proper divisors (427172795).

1138130245 is an equidigital number, since it uses as much as digits as its factorization.

1138130245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92484.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1138130245 is about 33736.1859877491. The cubic root of 1138130245 is about 1044.0724949414.

Adding to 1138130245 its reverse (5420318311), we get a palindrome (6558448556).

The spelling of 1138130245 in words is "one billion, one hundred thirty-eight million, one hundred thirty thousand, two hundred forty-five".