131730536 has 32 divisors (see below), whose sum is σ = 284096640. Its totient is φ = 56092608.

The previous prime is 131730527. The next prime is 131730583. The reversal of 131730536 is 635037131.

It is a happy number.

It is a super-2 number, since 2×131730536² = 34705868229694592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131730499 and 131730508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1301 + ... + 16283.

It is an arithmetic number, because the mean of its divisors is an integer number (8878020).

Almost surely, 2^131730536 is an apocalyptic number.

It is an amenable number.

131730536 is an abundant number, since it is smaller than the sum of its proper divisors (152366104).

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

131730536 is a wasteful number, since it uses less digits than its factorization.

131730536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15153 (or 15149 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 131730536 is about 11477.3923867750. The cubic root of 131730536 is about 508.8176326082.

Adding to 131730536 its reverse (635037131), we get a palindrome (766767667).

The spelling of 131730536 in words is "one hundred thirty-one million, seven hundred thirty thousand, five hundred thirty-six".