1214525312 has 128 divisors (see below), whose sum is σ = 3248985600. Its totient is φ = 436746240.

The previous prime is 1214525287. The next prime is 1214525317. The reversal of 1214525312 is 2135254121.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214525317) by changing a digit.

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, 123389 + ... + 132867.

It is an arithmetic number, because the mean of its divisors is an integer number (25382700).

Almost surely, 2^1214525312 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 1214525312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624492800).

1214525312 is an abundant number, since it is smaller than the sum of its proper divisors (2034460288).

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

1214525312 is a wasteful number, since it uses less digits than its factorization.

1214525312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9524 (or 9512 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 1214525312 is about 34850.0403443095. The cubic root of 1214525312 is about 1066.9290090837.

Adding to 1214525312 its reverse (2135254121), we get a palindrome (3349779433).

The spelling of 1214525312 in words is "one billion, two hundred fourteen million, five hundred twenty-five thousand, three hundred twelve".