131663142 has 24 divisors (see below), whose sum is σ = 307214544. Its totient is φ = 40511664.

The previous prime is 131663111. The next prime is 131663153. The reversal of 131663142 is 241366131.

131663142 is a `hidden beast` number, since 13 + 16 + 631 + 4 + 2 = 666.

It is a super-2 number, since 2×131663142² = 34670365922624328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281098 + ... + 281565.

It is an arithmetic number, because the mean of its divisors is an integer number (12800606).

Almost surely, 2^131663142 is an apocalyptic number.

131663142 is an abundant number, since it is smaller than the sum of its proper divisors (175551402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131663142 is a wasteful number, since it uses less digits than its factorization.

131663142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562684 (or 562681 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 131663142 is about 11474.4560655397. The cubic root of 131663142 is about 508.7308465926.

The spelling of 131663142 in words is "one hundred thirty-one million, six hundred sixty-three thousand, one hundred forty-two".