131004724 has 6 divisors (see below), whose sum is σ = 229258274. Its totient is φ = 65502360.

The previous prime is 131004689. The next prime is 131004739. The reversal of 131004724 is 427400131.

It can be written as a sum of positive squares in only one way, i.e., 119902500 + 11102224 = 10950^2 + 3332^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131004695 and 131004704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16375587 + ... + 16375594.

Almost surely, 2^131004724 is an apocalyptic number.

It is an amenable number.

131004724 is a deficient number, since it is larger than the sum of its proper divisors (98253550).

131004724 is a wasteful number, since it uses less digits than its factorization.

131004724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32751185 (or 32751183 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 131004724 is about 11445.7295092973. The cubic root of 131004724 is about 507.8814125820.

Adding to 131004724 its reverse (427400131), we get a palindrome (558404855).

The spelling of 131004724 in words is "one hundred thirty-one million, four thousand, seven hundred twenty-four".