131193248 has 12 divisors (see below), whose sum is σ = 258286770. Its totient is φ = 65596608.

The previous prime is 131193241. The next prime is 131193253. The reversal of 131193248 is 842391131.

It can be written as a sum of positive squares in only one way, i.e., 131148304 + 44944 = 11452^2 + 212^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 4099789 = 131193248 / (1 + 3 + 1 + 1 + 9 + 3 + 2 + 4 + 8).

It is not an unprimeable number, because it can be changed into a prime (131193241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2049863 + ... + 2049926.

Almost surely, 2^131193248 is an apocalyptic number.

It is an amenable number.

131193248 is a deficient number, since it is larger than the sum of its proper divisors (127093522).

131193248 is an equidigital number, since it uses as much as digits as its factorization.

131193248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099799 (or 4099791 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 131193248 is about 11453.9621092441. The cubic root of 131193248 is about 508.1249201954.

The spelling of 131193248 in words is "one hundred thirty-one million, one hundred ninety-three thousand, two hundred forty-eight".