68145192 has 64 divisors (see below), whose sum is σ = 195417600. Its totient is φ = 21980160.

The previous prime is 68145149. The next prime is 68145211. The reversal of 68145192 is 29154186.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1608 + ... + 11784.

It is an arithmetic number, because the mean of its divisors is an integer number (3053400).

Almost surely, 2^68145192 is an apocalyptic number.

68145192 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68145192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97708800).

68145192 is an abundant number, since it is smaller than the sum of its proper divisors (127272408).

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

68145192 is a wasteful number, since it uses less digits than its factorization.

68145192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10223 (or 10213 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 68145192 is about 8255.0101150756. The cubic root of 68145192 is about 408.4558054769.

The spelling of 68145192 in words is "sixty-eight million, one hundred forty-five thousand, one hundred ninety-two".