1150154240 has 80 divisors (see below), whose sum is σ = 2791415088. Its totient is φ = 454434816.

The previous prime is 1150154237. The next prime is 1150154251. The reversal of 1150154240 is 424510511.

It is a tau number, because it is divible by the number of its divisors (80).

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, 209774 + ... + 215186.

Almost surely, 2^1150154240 is an apocalyptic number.

1150154240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1150154240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1395707544).

1150154240 is an abundant number, since it is smaller than the sum of its proper divisors (1641260848).

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

1150154240 is an frugal number, since it uses more digits than its factorization.

1150154240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5519 (or 5503 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1150154240 is about 33913.9239841101. The cubic root of 1150154240 is about 1047.7363903927.

Adding to 1150154240 its reverse (424510511), we get a palindrome (1574664751).

The spelling of 1150154240 in words is "one billion, one hundred fifty million, one hundred fifty-four thousand, two hundred forty".