1201250512 has 80 divisors (see below), whose sum is σ = 2956632192. Its totient is φ = 459164160.

The previous prime is 1201250507. The next prime is 1201250569. The reversal of 1201250512 is 2150521021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201250512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56098 + ... + 74494.

Almost surely, 2^1201250512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201250512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1478316096).

1201250512 is an abundant number, since it is smaller than the sum of its proper divisors (1755381680).

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

1201250512 is a wasteful number, since it uses less digits than its factorization.

1201250512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18476 (or 18470 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1201250512 is about 34659.0610374834. The cubic root of 1201250512 is about 1063.0275708377.

Adding to 1201250512 its reverse (2150521021), we get a palindrome (3351771533).

It can be divided in two parts, 1201250 and 512, that multiplied together give a square (615040000 = 24800²).

The spelling of 1201250512 in words is "one billion, two hundred one million, two hundred fifty thousand, five hundred twelve".