131460561 has 6 divisors (see below), whose sum is σ = 189887490. Its totient is φ = 87640368.

The previous prime is 131460557. The next prime is 131460577. The reversal of 131460561 is 165064131.

It can be written as a sum of positive squares in only one way, i.e., 72846225 + 58614336 = 8535^2 + 7656^2 .

It is not a de Polignac number, because 131460561 - 2² = 131460557 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131460361) 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, 7303356 + ... + 7303373.

It is an arithmetic number, because the mean of its divisors is an integer number (31647915).

Almost surely, 2^131460561 is an apocalyptic number.

It is an amenable number.

131460561 is a deficient number, since it is larger than the sum of its proper divisors (58426929).

131460561 is a wasteful number, since it uses less digits than its factorization.

131460561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14606735 (or 14606732 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 131460561 is about 11465.6251901063. The cubic root of 131460561 is about 508.4697962992.

The spelling of 131460561 in words is "one hundred thirty-one million, four hundred sixty thousand, five hundred sixty-one".