131530651 has 6 divisors (see below), whose sum is σ = 153005100. Its totient is φ = 112740516.

The previous prime is 131530601. The next prime is 131530661. The reversal of 131530651 is 156035131.

It is not a de Polignac number, because 131530651 - 2¹¹ = 131528603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131530601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1342101 + ... + 1342198.

It is an arithmetic number, because the mean of its divisors is an integer number (25500850).

Almost surely, 2^131530651 is an apocalyptic number.

131530651 is a deficient number, since it is larger than the sum of its proper divisors (21474449).

131530651 is an equidigital number, since it uses as much as digits as its factorization.

131530651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684313 (or 2684306 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 131530651 is about 11468.6813104210. The cubic root of 131530651 is about 508.5601461245.

Adding to 131530651 its reverse (156035131), we get a palindrome (287565782).

The spelling of 131530651 in words is "one hundred thirty-one million, five hundred thirty thousand, six hundred fifty-one".