67861131 has 24 divisors (see below), whose sum is σ = 100966320. Its totient is φ = 40301184.

The previous prime is 67861117. The next prime is 67861177. The reversal of 67861131 is 13116876.

It is not a de Polignac number, because 67861131 - 2⁵ = 67861099 is a prime.

It is a super-3 number, since 3×67861131³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 67861092 and 67861101.

It is not an unprimeable number, because it can be changed into a prime (67861531) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 31765 + ... + 33833.

It is an arithmetic number, because the mean of its divisors is an integer number (4206930).

Almost surely, 2^67861131 is an apocalyptic number.

67861131 is a deficient number, since it is larger than the sum of its proper divisors (33105189).

67861131 is a wasteful number, since it uses less digits than its factorization.

67861131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143 (or 2114 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 67861131 is about 8237.7867780126. The cubic root of 67861131 is about 407.8874701676.

The spelling of 67861131 in words is "sixty-seven million, eight hundred sixty-one thousand, one hundred thirty-one".