1153240827 has 32 divisors (see below), whose sum is σ = 1635938304. Its totient is φ = 721353600.

The previous prime is 1153240801. The next prime is 1153240873. The reversal of 1153240827 is 7280423511.

It is not a de Polignac number, because 1153240827 - 2¹² = 1153236731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1153240877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1585938 + ... + 1586664.

It is an arithmetic number, because the mean of its divisors is an integer number (51123072).

Almost surely, 2^1153240827 is an apocalyptic number.

1153240827 is a deficient number, since it is larger than the sum of its proper divisors (482697477).

1153240827 is a wasteful number, since it uses less digits than its factorization.

1153240827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 1153240827 is about 33959.3996855068. The cubic root of 1153240827 is about 1048.6727984054.

The spelling of 1153240827 in words is "one billion, one hundred fifty-three million, two hundred forty thousand, eight hundred twenty-seven".