1197698250 has 128 divisors (see below), whose sum is σ = 3596636160. Its totient is φ = 259329600.

The previous prime is 1197698233. The next prime is 1197698267. The reversal of 1197698250 is 528967911.

1197698250 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1197698233) and next prime (1197698267).

It is a self number, because there is not a number n which added to its sum of digits gives 1197698250.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 93747 + ... + 105753.

It is an arithmetic number, because the mean of its divisors is an integer number (28098720).

Almost surely, 2^1197698250 is an apocalyptic number.

1197698250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1197698250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1798318080).

1197698250 is an abundant number, since it is smaller than the sum of its proper divisors (2398937910).

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

1197698250 is a wasteful number, since it uses less digits than its factorization.

1197698250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12053 (or 12043 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 48.

The square root of 1197698250 is about 34607.7773051087. Note that the first 3 decimals coincide. The cubic root of 1197698250 is about 1061.9786969812.

The spelling of 1197698250 in words is "one billion, one hundred ninety-seven million, six hundred ninety-eight thousand, two hundred fifty".