131136226 has 12 divisors (see below), whose sum is σ = 212999922. Its totient is φ = 60524256.

The previous prime is 131136211. The next prime is 131136259. The reversal of 131136226 is 622631131.

It can be written as a sum of positive squares in 3 ways, for example, as 78588225 + 52548001 = 8865^2 + 7249^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131136226.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 193651 + ... + 194326.

Almost surely, 2^131136226 is an apocalyptic number.

131136226 is a deficient number, since it is larger than the sum of its proper divisors (81863696).

131136226 is a wasteful number, since it uses less digits than its factorization.

131136226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388005 (or 387992 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The square root of 131136226 is about 11451.4726563879. The cubic root of 131136226 is about 508.0512921735.

Adding to 131136226 its reverse (622631131), we get a palindrome (753767357).

The spelling of 131136226 in words is "one hundred thirty-one million, one hundred thirty-six thousand, two hundred twenty-six".