68146542 has 16 divisors (see below), whose sum is σ = 151436880. Its totient is φ = 22715496.

The previous prime is 68146541. The next prime is 68146543. The reversal of 68146542 is 24564186.

It is an interprime number because it is at equal distance from previous prime (68146541) and next prime (68146543).

It is a junction number, because it is equal to n+sod(n) for n = 68146497 and 68146506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68146541) 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, 630933 + ... + 631040.

It is an arithmetic number, because the mean of its divisors is an integer number (9464805).

Almost surely, 2^68146542 is an apocalyptic number.

68146542 is an abundant number, since it is smaller than the sum of its proper divisors (83290338).

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

68146542 is a wasteful number, since it uses less digits than its factorization.

68146542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261984 (or 1261978 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 68146542 is about 8255.0918831955. The cubic root of 68146542 is about 408.4585027164.

The spelling of 68146542 in words is "sixty-eight million, one hundred forty-six thousand, five hundred forty-two".