1153348812 has 72 divisors (see below), whose sum is σ = 3634804992. Its totient is φ = 299570400.

The previous prime is 1153348789. The next prime is 1153348813. The reversal of 1153348812 is 2188433511.

1153348812 is a `hidden beast` number, since 1 + 1 + 533 + 48 + 81 + 2 = 666.

It is a super-2 number, since 2×1153348812² = 2660426964283622688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1153348813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 205264 + ... + 210807.

Almost surely, 2^1153348812 is an apocalyptic number.

1153348812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1153348812 is an abundant number, since it is smaller than the sum of its proper divisors (2481456180).

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

1153348812 is a wasteful number, since it uses less digits than its factorization.

1153348812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416099 (or 416094 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 1153348812 is about 33960.9895615543. The cubic root of 1153348812 is about 1048.7055286023.

The spelling of 1153348812 in words is "one billion, one hundred fifty-three million, three hundred forty-eight thousand, eight hundred twelve".