68152345 has 4 divisors (see below), whose sum is σ = 81782820. Its totient is φ = 54521872.

The previous prime is 68152339. The next prime is 68152351. The reversal of 68152345 is 54325186.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (68152339) and next prime (68152351).

It can be written as a sum of positive squares in 2 ways, for example, as 36252441 + 31899904 = 6021^2 + 5648^2 .

It is a cyclic number.

It is not a de Polignac number, because 68152345 - 2²¹ = 66055193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68152345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6815230 + ... + 6815239.

It is an arithmetic number, because the mean of its divisors is an integer number (20445705).

Almost surely, 2^68152345 is an apocalyptic number.

It is an amenable number.

68152345 is a deficient number, since it is larger than the sum of its proper divisors (13630475).

68152345 is a wasteful number, since it uses less digits than its factorization.

68152345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13630474.

The product of its digits is 28800, while the sum is 34.

The square root of 68152345 is about 8255.4433557502. The cubic root of 68152345 is about 408.4700964443.

The spelling of 68152345 in words is "sixty-eight million, one hundred fifty-two thousand, three hundred forty-five".