131661411 has 16 divisors (see below), whose sum is σ = 200793600. Its totient is φ = 75172608.

The previous prime is 131661401. The next prime is 131661443. The reversal of 131661411 is 114166131.

It is not a de Polignac number, because 131661411 - 2¹⁴ = 131645027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131661401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38010 + ... + 41328.

It is an arithmetic number, because the mean of its divisors is an integer number (12549600).

Almost surely, 2^131661411 is an apocalyptic number.

131661411 is a deficient number, since it is larger than the sum of its proper divisors (69132189).

131661411 is a wasteful number, since it uses less digits than its factorization.

131661411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5218.

The product of its digits is 432, while the sum is 24.

The square root of 131661411 is about 11474.3806368797. The cubic root of 131661411 is about 508.7286171229.

The spelling of 131661411 in words is "one hundred thirty-one million, six hundred sixty-one thousand, four hundred eleven".