1249119198 has 16 divisors (see below), whose sum is σ = 2775820560. Its totient is φ = 416373048.

The previous prime is 1249119197. The next prime is 1249119203. The reversal of 1249119198 is 8919119421.

It is a happy number.

1249119198 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249119197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11565865 + ... + 11565972.

It is an arithmetic number, because the mean of its divisors is an integer number (173488785).

Almost surely, 2^1249119198 is an apocalyptic number.

1249119198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1249119198 is an abundant number, since it is smaller than the sum of its proper divisors (1526701362).

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

1249119198 is a wasteful number, since it uses less digits than its factorization.

1249119198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23131848 (or 23131842 counting only the distinct ones).

The product of its digits is 46656, while the sum is 45.

The square root of 1249119198 is about 35342.8804428841. The cubic root of 1249119198 is about 1076.9642681793.

The spelling of 1249119198 in words is "one billion, two hundred forty-nine million, one hundred nineteen thousand, one hundred ninety-eight".