1198136064 has 144 divisors (see below), whose sum is σ = 3403112832. Its totient is φ = 372916224.

The previous prime is 1198136063. The next prime is 1198136083. The reversal of 1198136064 is 4606318911.

It is not an unprimeable number, because it can be changed into a prime (1198136063) 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, 2127847 + ... + 2128409.

It is an arithmetic number, because the mean of its divisors is an integer number (23632728).

Almost surely, 2^1198136064 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 1198136064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1701556416).

1198136064 is an abundant number, since it is smaller than the sum of its proper divisors (2204976768).

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

1198136064 is a wasteful number, since it uses less digits than its factorization.

1198136064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 1198136064 is about 34614.1020972667. The cubic root of 1198136064 is about 1062.1080819631.

The spelling of 1198136064 in words is "one billion, one hundred ninety-eight million, one hundred thirty-six thousand, sixty-four".