1153546240 has 432 divisors, whose sum is σ = 3725303400. Its totient is φ = 340623360.

The previous prime is 1153546217. The next prime is 1153546241. The reversal of 1153546240 is 426453511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153546241) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 60712951 + ... + 60712969.

Almost surely, 2^1153546240 is an apocalyptic number.

1153546240 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 1153546240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1862651700).

1153546240 is an abundant number, since it is smaller than the sum of its proper divisors (2571757160).

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

1153546240 is a wasteful number, since it uses less digits than its factorization.

1153546240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1153546240 is about 33963.8961251503. The cubic root of 1153546240 is about 1048.7653636439.

Adding to 1153546240 its reverse (426453511), we get a palindrome (1579999751).

It can be divided in two parts, 11535 and 46240, that added together give a palindrome (57775).

The spelling of 1153546240 in words is "one billion, one hundred fifty-three million, five hundred forty-six thousand, two hundred forty".