130631522 has 16 divisors (see below), whose sum is σ = 224197632. Its totient is φ = 55920480.

The previous prime is 130631521. The next prime is 130631537. The reversal of 130631522 is 225136031.

It is not an unprimeable number, because it can be changed into a prime (130631521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8447 + ... + 18237.

It is an arithmetic number, because the mean of its divisors is an integer number (14012352).

Almost surely, 2^130631522 is an apocalyptic number.

130631522 is a deficient number, since it is larger than the sum of its proper divisors (93566110).

130631522 is an equidigital number, since it uses as much as digits as its factorization.

130631522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10753.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 130631522 is about 11429.4147706696. The cubic root of 130631522 is about 507.3986752020.

Adding to 130631522 its reverse (225136031), we get a palindrome (355767553).

The spelling of 130631522 in words is "one hundred thirty million, six hundred thirty-one thousand, five hundred twenty-two".