68145070 has 32 divisors (see below), whose sum is σ = 145022400. Its totient is φ = 22557696.

The previous prime is 68145053. The next prime is 68145071. The reversal of 68145070 is 7054186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68145071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14755 + ... + 18814.

It is an arithmetic number, because the mean of its divisors is an integer number (4531950).

Almost surely, 2^68145070 is an apocalyptic number.

68145070 is an abundant number, since it is smaller than the sum of its proper divisors (76877330).

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

68145070 is a wasteful number, since it uses less digits than its factorization.

68145070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33612.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 68145070 is about 8255.0027256204. The cubic root of 68145070 is about 408.4555617247.

The spelling of 68145070 in words is "sixty-eight million, one hundred forty-five thousand, seventy".