1115153254 has 4 divisors (see below), whose sum is σ = 1672729884. Its totient is φ = 557576626.

The previous prime is 1115153227. The next prime is 1115153311. The reversal of 1115153254 is 4523515111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4523515111 = 1999 ⋅2262889.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 278788312 + ... + 278788315.

It is an arithmetic number, because the mean of its divisors is an integer number (418182471).

Almost surely, 2^1115153254 is an apocalyptic number.

1115153254 is a deficient number, since it is larger than the sum of its proper divisors (557576630).

1115153254 is an equidigital number, since it uses as much as digits as its factorization.

1115153254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557576629.

The product of its digits is 3000, while the sum is 28.

The square root of 1115153254 is about 33393.9104328918. The cubic root of 1115153254 is about 1036.9986364353.

Adding to 1115153254 its reverse (4523515111), we get a palindrome (5638668365).

The spelling of 1115153254 in words is "one billion, one hundred fifteen million, one hundred fifty-three thousand, two hundred fifty-four".