1153345212 has 72 divisors (see below), whose sum is σ = 3221146656. Its totient is φ = 346097664.

The previous prime is 1153345147. The next prime is 1153345223. The reversal of 1153345212 is 2125433511.

1153345212 is a `hidden beast` number, since 115 + 334 + 5 + 212 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26893 + ... + 55044.

It is an arithmetic number, because the mean of its divisors is an integer number (44738148).

Almost surely, 2^1153345212 is an apocalyptic number.

1153345212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1153345212 is an abundant number, since it is smaller than the sum of its proper divisors (2067801444).

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

1153345212 is a wasteful number, since it uses less digits than its factorization.

1153345212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81987 (or 81982 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1153345212 is about 33960.9365595238. The cubic root of 1153345212 is about 1048.7044374771.

Adding to 1153345212 its reverse (2125433511), we get a palindrome (3278778723).

The spelling of 1153345212 in words is "one billion, one hundred fifty-three million, three hundred forty-five thousand, two hundred twelve".