131228798 has 16 divisors (see below), whose sum is σ = 199545216. Its totient is φ = 64719000.

The previous prime is 131228791. The next prime is 131228837. The reversal of 131228798 is 897822131.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131228791) 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, 57173 + ... + 59423.

It is an arithmetic number, because the mean of its divisors is an integer number (12471576).

Almost surely, 2^131228798 is an apocalyptic number.

131228798 is a deficient number, since it is larger than the sum of its proper divisors (68316418).

131228798 is a wasteful number, since it uses less digits than its factorization.

131228798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639.

The product of its digits is 48384, while the sum is 41.

The square root of 131228798 is about 11455.5138688755. The cubic root of 131228798 is about 508.1708123172.

The spelling of 131228798 in words is "one hundred thirty-one million, two hundred twenty-eight thousand, seven hundred ninety-eight".