131003226 has 24 divisors (see below), whose sum is σ = 284256180. Its totient is φ = 43603776.

The previous prime is 131003209. The next prime is 131003261. The reversal of 131003226 is 622300131.

It can be written as a sum of positive squares in 2 ways, for example, as 127577025 + 3426201 = 11295^2 + 1851^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131003199 and 131003208.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8230 + ... + 18158.

Almost surely, 2^131003226 is an apocalyptic number.

131003226 is an abundant number, since it is smaller than the sum of its proper divisors (153252954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131003226 is a wasteful number, since it uses less digits than its factorization.

131003226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10670 (or 10667 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 131003226 is about 11445.6640698563. The cubic root of 131003226 is about 507.8794767504.

Adding to 131003226 its reverse (622300131), we get a palindrome (753303357).

The spelling of 131003226 in words is "one hundred thirty-one million, three thousand, two hundred twenty-six".