1198148256 has 36 divisors (see below), whose sum is σ = 3407234922. Its totient is φ = 399382656.

The previous prime is 1198148209. The next prime is 1198148257. The reversal of 1198148256 is 6528418911.

It is a happy number.

1198148256 is a `hidden beast` number, since 119 + 8 + 1 + 482 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 941507856 + 256640400 = 30684^2 + 16020^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1198148257) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2079831 + ... + 2080406.

Almost surely, 2^1198148256 is an apocalyptic number.

1198148256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1198148256 is an abundant number, since it is smaller than the sum of its proper divisors (2209086666).

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

1198148256 is a wasteful number, since it uses less digits than its factorization.

1198148256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4160253 (or 4160242 counting only the distinct ones).

The product of its digits is 138240, while the sum is 45.

The square root of 1198148256 is about 34614.2782100104. The cubic root of 1198148256 is about 1062.1116845528. Note that the first 3 decimals are identical.

The spelling of 1198148256 in words is "one billion, one hundred ninety-eight million, one hundred forty-eight thousand, two hundred fifty-six".