131146226 has 4 divisors (see below), whose sum is σ = 196719342. Its totient is φ = 65573112.

The previous prime is 131146219. The next prime is 131146243. The reversal of 131146226 is 622641131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 622641131 = 7 ⋅88948733.

It can be written as a sum of positive squares in only one way, i.e., 117831025 + 13315201 = 10855^2 + 3649^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131146195 and 131146204.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32786555 + ... + 32786558.

Almost surely, 2^131146226 is an apocalyptic number.

131146226 is a deficient number, since it is larger than the sum of its proper divisors (65573116).

131146226 is an equidigital number, since it uses as much as digits as its factorization.

131146226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65573115.

The product of its digits is 1728, while the sum is 26.

The square root of 131146226 is about 11451.9092731300. The cubic root of 131146226 is about 508.0642059298.

Adding to 131146226 its reverse (622641131), we get a palindrome (753787357).

The spelling of 131146226 in words is "one hundred thirty-one million, one hundred forty-six thousand, two hundred twenty-six".