131026516 has 6 divisors (see below), whose sum is σ = 229296410. Its totient is φ = 65513256.

The previous prime is 131026513. The next prime is 131026517. The reversal of 131026516 is 615620131.

It can be written as a sum of positive squares in only one way, i.e., 98010000 + 33016516 = 9900^2 + 5746^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131026513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16378311 + ... + 16378318.

Almost surely, 2^131026516 is an apocalyptic number.

It is an amenable number.

131026516 is a deficient number, since it is larger than the sum of its proper divisors (98269894).

131026516 is a wasteful number, since it uses less digits than its factorization.

131026516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32756633 (or 32756631 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 131026516 is about 11446.6814404875. The cubic root of 131026516 is about 507.9095722233.

Adding to 131026516 its reverse (615620131), we get a palindrome (746646647).

The spelling of 131026516 in words is "one hundred thirty-one million, twenty-six thousand, five hundred sixteen".