1214731608 has 64 divisors (see below), whose sum is σ = 3139131360. Its totient is φ = 391412736.

The previous prime is 1214731603. The next prime is 1214731627. The reversal of 1214731608 is 8061374121.

It is a Cunningham number, because it is equal to 34853²-1.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214731603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135060 + ... + 143772.

Almost surely, 2^1214731608 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 1214731608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569565680).

1214731608 is an abundant number, since it is smaller than the sum of its proper divisors (1924399752).

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

1214731608 is a wasteful number, since it uses less digits than its factorization.

1214731608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8916 (or 8912 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1214731608 is about 34852.9999856540. Note that the first 4 decimals coincide. The cubic root of 1214731608 is about 1066.9894142269.

The spelling of 1214731608 in words is "one billion, two hundred fourteen million, seven hundred thirty-one thousand, six hundred eight".