68312901 has 8 divisors (see below), whose sum is σ = 92181600. Its totient is φ = 44993072.

The previous prime is 68312891. The next prime is 68312903. The reversal of 68312901 is 10921386.

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 68312901 - 2⁶ = 68312837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68312903) 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, 136926 + ... + 137423.

It is an arithmetic number, because the mean of its divisors is an integer number (11522700).

Almost surely, 2^68312901 is an apocalyptic number.

It is an amenable number.

68312901 is a deficient number, since it is larger than the sum of its proper divisors (23868699).

68312901 is a wasteful number, since it uses less digits than its factorization.

68312901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274435.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 68312901 is about 8265.1618858919. The cubic root of 68312901 is about 408.7906082410.

The spelling of 68312901 in words is "sixty-eight million, three hundred twelve thousand, nine hundred one".