1154225240 has 64 divisors (see below), whose sum is σ = 2975918400. Its totient is φ = 394679808.

The previous prime is 1154225239. The next prime is 1154225291. The reversal of 1154225240 is 425224511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103622 + ... + 114218.

It is an arithmetic number, because the mean of its divisors is an integer number (46498725).

Almost surely, 2^1154225240 is an apocalyptic number.

1154225240 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 1154225240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1487959200).

1154225240 is an abundant number, since it is smaller than the sum of its proper divisors (1821693160).

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

1154225240 is a wasteful number, since it uses less digits than its factorization.

1154225240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11004 (or 11000 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1154225240 is about 33973.8905631957. The cubic root of 1154225240 is about 1048.9710979213.

Adding to 1154225240 its reverse (425224511), we get a palindrome (1579449751).

The spelling of 1154225240 in words is "one billion, one hundred fifty-four million, two hundred twenty-five thousand, two hundred forty".