1115230538 has 4 divisors (see below), whose sum is σ = 1672845810. Its totient is φ = 557615268.

The previous prime is 1115230537. The next prime is 1115230541. The reversal of 1115230538 is 8350325111.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 863595769 + 251634769 = 29387^2 + 15863^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1115230538.

It is not an unprimeable number, because it can be changed into a prime (1115230537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278807633 + ... + 278807636.

Almost surely, 2^1115230538 is an apocalyptic number.

1115230538 is a deficient number, since it is larger than the sum of its proper divisors (557615272).

1115230538 is an equidigital number, since it uses as much as digits as its factorization.

1115230538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557615271.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 1115230538 is about 33395.0675699271. The cubic root of 1115230538 is about 1037.0225917529.

Adding to 1115230538 its reverse (8350325111), we get a palindrome (9465555649).

The spelling of 1115230538 in words is "one billion, one hundred fifteen million, two hundred thirty thousand, five hundred thirty-eight".