68597143 has 4 divisors (see below), whose sum is σ = 68645248. Its totient is φ = 68549040.

The previous prime is 68597131. The next prime is 68597171. The reversal of 68597143 is 34179586.

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

It is a cyclic number.

It is not a de Polignac number, because 68597143 - 2¹³ = 68588951 is a prime.

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 68597143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68597183) 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, 21846 + ... + 24787.

It is an arithmetic number, because the mean of its divisors is an integer number (17161312).

Almost surely, 2^68597143 is an apocalyptic number.

68597143 is a deficient number, since it is larger than the sum of its proper divisors (48105).

68597143 is a wasteful number, since it uses less digits than its factorization.

68597143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48104.

The product of its digits is 181440, while the sum is 43.

The square root of 68597143 is about 8282.3392227076. The cubic root of 68597143 is about 409.3568003330.

The spelling of 68597143 in words is "sixty-eight million, five hundred ninety-seven thousand, one hundred forty-three".