68153934 has 16 divisors (see below), whose sum is σ = 140705280. Its totient is φ = 21985080.

The previous prime is 68153933. The next prime is 68153947. The reversal of 68153934 is 43935186.

It is a junction number, because it is equal to n+sod(n) for n = 68153892 and 68153901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68153933) 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, 183024 + ... + 183395.

It is an arithmetic number, because the mean of its divisors is an integer number (8794080).

Almost surely, 2^68153934 is an apocalyptic number.

68153934 is an abundant number, since it is smaller than the sum of its proper divisors (72551346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68153934 is a wasteful number, since it uses less digits than its factorization.

68153934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366455.

The product of its digits is 77760, while the sum is 39.

The square root of 68153934 is about 8255.5395947206. The cubic root of 68153934 is about 408.4732709692.

It can be divided in two parts, 681 and 53934, that added together give a triangular number (54615 = T₃₃₀).

The spelling of 68153934 in words is "sixty-eight million, one hundred fifty-three thousand, nine hundred thirty-four".