131797748228 has 6 divisors (see below), whose sum is σ = 230646059406. Its totient is φ = 65898874112.

The previous prime is 131797748213. The next prime is 131797748239. The reversal of 131797748228 is 822847797131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 112353676864 + 19444071364 = 335192^2 + 139442^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16474718525 + ... + 16474718532.

It is an arithmetic number, because the mean of its divisors is an integer number (38441009901).

Almost surely, 2^131797748228 is an apocalyptic number.

It is an amenable number.

131797748228 is a deficient number, since it is larger than the sum of its proper divisors (98848311178).

131797748228 is a wasteful number, since it uses less digits than its factorization.

131797748228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32949437061 (or 32949437059 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 59.

The spelling of 131797748228 in words is "one hundred thirty-one billion, seven hundred ninety-seven million, seven hundred forty-eight thousand, two hundred twenty-eight".