68635137 has 8 divisors (see below), whose sum is σ = 96896736. Its totient is φ = 43065152.

The previous prime is 68635129. The next prime is 68635153. The reversal of 68635137 is 73153686.

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 68635137 - 2³ = 68635129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68635095 and 68635104.

It is not an unprimeable number, because it can be changed into a prime (68635117) 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, 672843 + ... + 672944.

It is an arithmetic number, because the mean of its divisors is an integer number (12112092).

Almost surely, 2^68635137 is an apocalyptic number.

It is an amenable number.

68635137 is a deficient number, since it is larger than the sum of its proper divisors (28261599).

68635137 is a wasteful number, since it uses less digits than its factorization.

68635137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345807.

The product of its digits is 90720, while the sum is 39.

The square root of 68635137 is about 8284.6325808692. The cubic root of 68635137 is about 409.4323634007.

The spelling of 68635137 in words is "sixty-eight million, six hundred thirty-five thousand, one hundred thirty-seven".