67650143 has 4 divisors (see below), whose sum is σ = 73800168. Its totient is φ = 61500120.

The previous prime is 67650139. The next prime is 67650161. The reversal of 67650143 is 34105676.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 67650143 - 2² = 67650139 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67650113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3074996 + ... + 3075017.

It is an arithmetic number, because the mean of its divisors is an integer number (18450042).

Almost surely, 2^67650143 is an apocalyptic number.

67650143 is a deficient number, since it is larger than the sum of its proper divisors (6150025).

67650143 is a wasteful number, since it uses less digits than its factorization.

67650143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6150024.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 67650143 is about 8224.9706990360. The cubic root of 67650143 is about 407.4643084150.

The spelling of 67650143 in words is "sixty-seven million, six hundred fifty thousand, one hundred forty-three".