67131842 has 16 divisors (see below), whose sum is σ = 104852664. Its totient is φ = 32208000.

The previous prime is 67131809. The next prime is 67131851. The reversal of 67131842 is 24813176.

It can be written as a sum of positive squares in 4 ways, for example, as 38925121 + 28206721 = 6239^2 + 5311^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67131799 and 67131808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1709 + ... + 11712.

Almost surely, 2^67131842 is an apocalyptic number.

67131842 is a deficient number, since it is larger than the sum of its proper divisors (37720822).

67131842 is a wasteful number, since it uses less digits than its factorization.

67131842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13525.

The product of its digits is 8064, while the sum is 32.

The square root of 67131842 is about 8193.4023457902. The cubic root of 67131842 is about 406.4210447554.

The spelling of 67131842 in words is "sixty-seven million, one hundred thirty-one thousand, eight hundred forty-two".