68143534 has 8 divisors (see below), whose sum is σ = 102471408. Its totient is φ = 33986400.

The previous prime is 68143483. The next prime is 68143547. The reversal of 68143534 is 43534186.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 68143534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41682 + ... + 43285.

It is an arithmetic number, because the mean of its divisors is an integer number (12808926).

Almost surely, 2^68143534 is an apocalyptic number.

68143534 is a deficient number, since it is larger than the sum of its proper divisors (34327874).

68143534 is a wasteful number, since it uses less digits than its factorization.

68143534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85370.

The product of its digits is 34560, while the sum is 34.

The square root of 68143534 is about 8254.9096906023. The cubic root of 68143534 is about 408.4524928186.

The spelling of 68143534 in words is "sixty-eight million, one hundred forty-three thousand, five hundred thirty-four".