67120631 has 8 divisors (see below), whose sum is σ = 69354144. Its totient is φ = 64923040.

The previous prime is 67120621. The next prime is 67120633. The reversal of 67120631 is 13602176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67120631 - 2¹⁰ = 67119607 is a prime.

It is a super-2 number, since 2×67120631² = 9010358211676322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67120631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67120633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5156 + ... + 12681.

It is an arithmetic number, because the mean of its divisors is an integer number (8669268).

Almost surely, 2^67120631 is an apocalyptic number.

67120631 is a deficient number, since it is larger than the sum of its proper divisors (2233513).

67120631 is a wasteful number, since it uses less digits than its factorization.

67120631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17961.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 67120631 is about 8192.7181692037. The cubic root of 67120631 is about 406.3984194266.

The spelling of 67120631 in words is "sixty-seven million, one hundred twenty thousand, six hundred thirty-one".