1212755232 has 48 divisors (see below), whose sum is σ = 3428369280. Its totient is φ = 373155072.

The previous prime is 1212755183. The next prime is 1212755239. The reversal of 1212755232 is 2325572121.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1212755232.

It is not an unprimeable number, because it can be changed into a prime (1212755239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484632 + ... + 487127.

It is an arithmetic number, because the mean of its divisors is an integer number (71424360).

Almost surely, 2^1212755232 is an apocalyptic number.

1212755232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212755232 is an abundant number, since it is smaller than the sum of its proper divisors (2215614048).

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

1212755232 is a wasteful number, since it uses less digits than its factorization.

1212755232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971785 (or 971777 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 1212755232 is about 34824.6354180485. The cubic root of 1212755232 is about 1066.4104339393.

The spelling of 1212755232 in words is "one billion, two hundred twelve million, seven hundred fifty-five thousand, two hundred thirty-two".