131205794 has 4 divisors (see below), whose sum is σ = 196808694. Its totient is φ = 65602896.

The previous prime is 131205791. The next prime is 131205821. The reversal of 131205794 is 497502131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 129117769 + 2088025 = 11363^2 + 1445^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131205794.

It is not an unprimeable number, because it can be changed into a prime (131205791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32801447 + ... + 32801450.

Almost surely, 2^131205794 is an apocalyptic number.

131205794 is a deficient number, since it is larger than the sum of its proper divisors (65602900).

131205794 is an equidigital number, since it uses as much as digits as its factorization.

131205794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65602899.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 131205794 is about 11454.5097668997. The cubic root of 131205794 is about 508.1411169945.

The spelling of 131205794 in words is "one hundred thirty-one million, two hundred five thousand, seven hundred ninety-four".