131736461 has 4 divisors (see below), whose sum is σ = 132405372. Its totient is φ = 131067552.

The previous prime is 131736427. The next prime is 131736469. The reversal of 131736461 is 164637131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 127554436 + 4182025 = 11294^2 + 2045^2 .

It is a cyclic number.

It is not a de Polignac number, because 131736461 - 2¹⁴ = 131720077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131736469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334160 + ... + 334553.

It is an arithmetic number, because the mean of its divisors is an integer number (33101343).

Almost surely, 2^131736461 is an apocalyptic number.

It is an amenable number.

131736461 is a deficient number, since it is larger than the sum of its proper divisors (668911).

131736461 is an equidigital number, since it uses as much as digits as its factorization.

131736461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668910.

The product of its digits is 9072, while the sum is 32.

The square root of 131736461 is about 11477.6504999935. The cubic root of 131736461 is about 508.8252610578.

The spelling of 131736461 in words is "one hundred thirty-one million, seven hundred thirty-six thousand, four hundred sixty-one".