131530322 has 16 divisors (see below), whose sum is σ = 245979072. Its totient is φ = 51245520.

The previous prime is 131530291. The next prime is 131530387. The reversal of 131530322 is 223035131.

It is a junction number, because it is equal to n+sod(n) for n = 131530294 and 131530303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426893 + ... + 427200.

It is an arithmetic number, because the mean of its divisors is an integer number (15373692).

Almost surely, 2^131530322 is an apocalyptic number.

131530322 is a deficient number, since it is larger than the sum of its proper divisors (114448750).

131530322 is a wasteful number, since it uses less digits than its factorization.

131530322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854113.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 131530322 is about 11468.6669670019. Note that the first 3 decimals coincide. The cubic root of 131530322 is about 508.5597221005.

Adding to 131530322 its reverse (223035131), we get a palindrome (354565453).

The spelling of 131530322 in words is "one hundred thirty-one million, five hundred thirty thousand, three hundred twenty-two".