1153540212 has 48 divisors (see below), whose sum is σ = 2938756800. Its totient is φ = 349263360.

The previous prime is 1153540187. The next prime is 1153540237. The reversal of 1153540212 is 2120453511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1153540187) and next prime (1153540237).

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, 193614 + ... + 199482.

It is an arithmetic number, because the mean of its divisors is an integer number (61224100).

Almost surely, 2^1153540212 is an apocalyptic number.

1153540212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1153540212 is an abundant number, since it is smaller than the sum of its proper divisors (1785216588).

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

1153540212 is a wasteful number, since it uses less digits than its factorization.

1153540212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7376 (or 7374 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1153540212 is about 33963.8073837431. The cubic root of 1153540212 is about 1048.7635368226.

Adding to 1153540212 its reverse (2120453511), we get a palindrome (3273993723).

The spelling of 1153540212 in words is "one billion, one hundred fifty-three million, five hundred forty thousand, two hundred twelve".