67130631 has 6 divisors (see below), whose sum is σ = 96966480. Its totient is φ = 44753748.

The previous prime is 67130627. The next prime is 67130633. The reversal of 67130631 is 13603176.

It is not a de Polignac number, because 67130631 - 2² = 67130627 is a prime.

It is a super-2 number, since 2×67130631² = 9013043236916322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67130595 and 67130604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67130633) 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, 3729471 + ... + 3729488.

It is an arithmetic number, because the mean of its divisors is an integer number (16161080).

Almost surely, 2^67130631 is an apocalyptic number.

67130631 is a deficient number, since it is larger than the sum of its proper divisors (29835849).

67130631 is a wasteful number, since it uses less digits than its factorization.

67130631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7458965 (or 7458962 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 67130631 is about 8193.3284445334. The cubic root of 67130631 is about 406.4186009134.

The spelling of 67130631 in words is "sixty-seven million, one hundred thirty thousand, six hundred thirty-one".