131158652242 has 8 divisors (see below), whose sum is σ = 196842799116. Its totient is φ = 65544385872.

The previous prime is 131158652201. The next prime is 131158652299. The reversal of 131158652242 is 242256851131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 130415599161 + 743053081 = 361131^2 + 27259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 131158652195 and 131158652204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17465433 + ... + 17472940.

Almost surely, 2^131158652242 is an apocalyptic number.

131158652242 is a deficient number, since it is larger than the sum of its proper divisors (65684146874).

131158652242 is a wasteful number, since it uses less digits than its factorization.

131158652242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34940252.

The product of its digits is 115200, while the sum is 40.

The spelling of 131158652242 in words is "one hundred thirty-one billion, one hundred fifty-eight million, six hundred fifty-two thousand, two hundred forty-two".