68145790 has 8 divisors (see below), whose sum is σ = 122662440. Its totient is φ = 27258312.

The previous prime is 68145773. The next prime is 68145793. The reversal of 68145790 is 9754186.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68145793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3407280 + ... + 3407299.

It is an arithmetic number, because the mean of its divisors is an integer number (15332805).

Almost surely, 2^68145790 is an apocalyptic number.

68145790 is a deficient number, since it is larger than the sum of its proper divisors (54516650).

68145790 is a wasteful number, since it uses less digits than its factorization.

68145790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814586.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 68145790 is about 8255.0463354242. The cubic root of 68145790 is about 408.4570002585.

The spelling of 68145790 in words is "sixty-eight million, one hundred forty-five thousand, seven hundred ninety".