68153573 has 8 divisors (see below), whose sum is σ = 68684760. Its totient is φ = 67624960.

The previous prime is 68153549. The next prime is 68153587. The reversal of 68153573 is 37535186.

It can be written as a sum of positive squares in 4 ways, for example, as 33849124 + 34304449 = 5818^2 + 5857^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 68153573 - 2¹⁴ = 68137189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68153773) 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, 130553 + ... + 131073.

It is an arithmetic number, because the mean of its divisors is an integer number (8585595).

Almost surely, 2^68153573 is an apocalyptic number.

It is an amenable number.

68153573 is a deficient number, since it is larger than the sum of its proper divisors (531187).

68153573 is a wasteful number, since it uses less digits than its factorization.

68153573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287.

The product of its digits is 75600, while the sum is 38.

The square root of 68153573 is about 8255.5177305848. The cubic root of 68153573 is about 408.4725497630.

The spelling of 68153573 in words is "sixty-eight million, one hundred fifty-three thousand, five hundred seventy-three".