1115240154 has 64 divisors (see below), whose sum is σ = 2703456000. Its totient is φ = 299409408.

The previous prime is 1115240129. The next prime is 1115240177. The reversal of 1115240154 is 4510425111.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 748242 + ... + 749730.

It is an arithmetic number, because the mean of its divisors is an integer number (42241500).

Almost surely, 2^1115240154 is an apocalyptic number.

1115240154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1115240154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1351728000).

1115240154 is an abundant number, since it is smaller than the sum of its proper divisors (1588215846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1115240154 is a wasteful number, since it uses less digits than its factorization.

1115240154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 1115240154 is about 33395.2115429742. The cubic root of 1115240154 is about 1037.0255722968.

Adding to 1115240154 its reverse (4510425111), we get a palindrome (5625665265).

The spelling of 1115240154 in words is "one billion, one hundred fifteen million, two hundred forty thousand, one hundred fifty-four".