68457101 has 4 divisors (see below), whose sum is σ = 68673372. Its totient is φ = 68240832.

The previous prime is 68457097. The next prime is 68457107. The reversal of 68457101 is 10175486.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7695076 + 60762025 = 2774^2 + 7795^2 .

It is a cyclic number.

It is not a de Polignac number, because 68457101 - 2² = 68457097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68457107) 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, 107660 + ... + 108293.

It is an arithmetic number, because the mean of its divisors is an integer number (17168343).

Almost surely, 2^68457101 is an apocalyptic number.

It is an amenable number.

68457101 is a deficient number, since it is larger than the sum of its proper divisors (216271).

68457101 is a wasteful number, since it uses less digits than its factorization.

68457101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216270.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 68457101 is about 8273.8806493688. The cubic root of 68457101 is about 409.0780413925.

The spelling of 68457101 in words is "sixty-eight million, four hundred fifty-seven thousand, one hundred one".